U.S. patent number 11,083,248 [Application Number 15/921,218] was granted by the patent office on 2021-08-10 for automated footwear platform having upper elastic tensioner.
This patent grant is currently assigned to NIKE, Inc.. The grantee listed for this patent is NIKE, Inc.. Invention is credited to Christopher Andon, Eric P. Avar, Thomas G. Bell, Narissa Chang, Summer L. Schneider.
United States Patent |
11,083,248 |
Schneider , et al. |
August 10, 2021 |
Automated footwear platform having upper elastic tensioner
Abstract
A footwear assembly can comprise, an upper, a lace cable, a
plurality of lace guides and a tensioner. The tensioner can
comprise an elastic member extending between two lace guides of the
plurality of lace guides, an elastic member extending between first
and second portions of the upper, an elastic member extending
between a portion of the upper and a lace guide of the plurality of
lace guides, a heel channel connected to a heel portion of the
upper and configured to facilitate access to an interior space, an
elastic member coupled to the footwear assembly that functions to
smooth out a torque versus lace displacement curve during
tightening of the lace cable.
Inventors: |
Schneider; Summer L.
(Beaverton, OR), Chang; Narissa (Portland, OR), Avar;
Eric P. (Lake Oswego, OR), Bell; Thomas G. (Portland,
OR), Andon; Christopher (Portland, OR) |
Applicant: |
Name |
City |
State |
Country |
Type |
NIKE, Inc. |
Beaverton |
OR |
US |
|
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Assignee: |
NIKE, Inc. (Beaverton,
OR)
|
Family
ID: |
62838213 |
Appl.
No.: |
15/921,218 |
Filed: |
March 14, 2018 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20180199673 A1 |
Jul 19, 2018 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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15458824 |
Mar 14, 2017 |
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62471850 |
Mar 15, 2017 |
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62475105 |
Mar 22, 2017 |
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62424301 |
Nov 18, 2016 |
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62413142 |
Oct 26, 2016 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A43B
11/00 (20130101); A43B 3/34 (20220101); A43B
13/14 (20130101); A43C 11/165 (20130101); A43B
23/0245 (20130101); A43C 7/06 (20130101); A43C
11/008 (20130101); A43C 1/00 (20130101); A43C
3/00 (20130101) |
Current International
Class: |
A43C
11/16 (20060101); A43B 3/00 (20060101); A43C
1/00 (20060101); A43C 7/06 (20060101); A43B
13/14 (20060101); A43B 23/04 (20060101); A43B
23/02 (20060101); A43C 11/00 (20060101); A43B
11/00 (20060101); A43C 3/00 (20060101) |
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Primary Examiner: Mohandesi; Jila M
Attorney, Agent or Firm: Schwegman Lundberg & Woessner,
P.A.
Parent Case Text
CLAIM OF PRIORITY
This application claims the benefit of priority to U.S. Provisional
Patent Application Ser. No. 62/471,850, filed on Mar. 15, 2017; and
U.S. Provisional Patent Application Ser. No. 62/475,105, filed on
Mar. 22, 2017, which are hereby incorporated by reference herein in
their entirety.
This patent application is also a continuation-in-part of and
claims priority to U.S. patent application Ser. No. 15/458,824,
filed on Mar. 14, 2017, which claims the benefit of priority to
U.S. Provisional Patent Application Ser. No. 62/424,301, filed on
Nov. 18, 2016, and U.S. Provisional Patent Application Ser. No.
62/413,142, filed on Oct. 26, 2016, which are incorporated by
reference in their entirety.
Claims
The invention claimed is:
1. A footwear assembly comprising: a footwear upper including a toe
box portion, a medial side, a lateral side, and a heel portion, the
medial side and the lateral side each extending proximally from the
toe box portion to the heel portion; a lace cable with a first end
anchored along a distal outside portion of the medial side and a
second end anchored along a distal outside portion of the lateral
side; a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper; a medial proximal lace guide routing the lace
cable from the pattern formed by a medial portion of the plurality
of lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; wherein the medial proximal lace guide and the lateral
proximal lace guide are floating relative to the footwear upper;
and a first elastic member extending between the medial proximal
lace guide and the lateral proximal lace guide; wherein the first
elastic member connects the medial proximal and lateral proximal
lace guides across the heel portion of the footwear upper.
2. The footwear assembly of claim 1, further comprising a second
elastic member that connects first and second lace guides of the
plurality of lace guides across a centerline portion of the
footwear upper.
3. The footwear assembly of claim 2, further comprising a third
elastic member extending between third and fourth lace guides of
the plurality of lace guides.
4. The footwear assembly of claim 1, wherein the first elastic
member is interchangeable with different elastic members providing
varying modulus of elasticity to change fit characteristics of the
footwear upper.
5. The footwear assembly of claim 1, wherein the first elastic
member functions to smooth out a torque versus lace displacement
curve during tightening of the lace cable.
6. The footwear assembly of claim 1, wherein the first elastic
member is slidable relative to the footwear upper.
7. The footwear assembly of claim 1, wherein the medial proximal
lace guide is connected to the footwear assembly via the lace cable
and a first end of the first elastic member and the lateral
proximal lace guide is connected to the footwear upper via the lace
cable and a second end of the first elastic member.
8. The footwear assembly of claim 7, wherein the first elastic
member further comprises a heel strap extending from the lateral
proximal lace guide to an anchor point fixed to the footwear
upper.
9. The footwear assembly of claim 8, wherein: the first elastic
member is configured to bias the lateral proximal lace guide toward
the heel portion of the footwear upper; and the heel strap limits
movement of the lateral proximal lace guide toward the toe box
portion.
10. A footwear assembly comprising: a footwear upper including a
toe box portion, a medial side, a lateral side, and a heel portion,
the medial side and the lateral side each extending proximally from
the toe box portion to the heel portion; a lace cable with a first
end anchored along a distal outside portion of the medial side and
a second end anchored along a distal outside portion of the lateral
side; a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper; a medial proximal lace guide routing the lace
cable from the pattern formed by a medial portion of the plurality
of lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between first and
second portions of the footwear upper; wherein the first elastic
member comprises an elastic heel portion extending proximate to a
foot opening, and the first and second portions of the footwear
upper comprise medial and lateral sides of the heel portion,
respectively; and wherein the first elastic member is configured to
pre-tension medial and lateral portions of the lace cable.
11. The footwear assembly of claim 10, further comprising a second
elastic member that comprises an elastic centerline portion
extending from at least the toe box portion proximally to a foot
opening, and the first and second portions of the footwear upper
comprise the medial and lateral sides, respectively.
12. The footwear assembly of claim 10, wherein the first elastic
member functions to smooth out a torque versus lace displacement
curve during tightening of the lace cable.
13. The footwear assembly of claim 10, wherein the first elastic
member can be opened or expanded to permit access to an interior
space within the footwear upper.
14. The footwear assembly of claim 10, wherein the first elastic
member is slidable relative to the footwear upper.
15. The footwear assembly of claim 10, wherein the first elastic
member comprises: a tensioning strap connecting a medial side of
the lace cable and a lateral side of the lace cable across the heel
portion of the footwear upper.
16. The footwear assembly of claim 15, wherein the tensioning strap
further comprises: a length of material comprising a first end
portion and a second end portion; a first juncture joining the
first end portion to the lateral proximal lace guide; and a second
juncture joining the second end portion to the medial proximal lace
guide.
17. The footwear assembly of claim 16, wherein the first elastic
member further comprises a heel strap extending from the lateral
proximal lace guide to an anchor point fixed to the footwear
upper.
18. A footwear assembly comprising: a sole structure; a footwear
upper defining a toe box portion, a medial side, a lateral side,
and a heel portion, the footwear upper connected to the sole
structure to form an interior space for receiving a foot, the
footwear upper forming a collar to permit access to the interior
space; a lacing engine disposed in the sole structure; a lacing
system comprising: a lace cable having medial and lateral ends
anchored to the footwear upper and a middle portion passing through
the lacing engine; and a plurality of lace guides for routing the
lace cable along the footwear upper between the medial and lateral
ends and the lacing engine; and an elastic member coupled to the
footwear assembly that functions to smooth out a torque versus lace
displacement curve during tightening of the lace cable; wherein the
elastic member connects first and second lace guides of the
plurality of lace guides; wherein the first and second lace guides
are located on medial and lateral portions of the heel portion,
respectively; and wherein the elastic member is configured to
pre-tension the first and second lace guides toward the heel
portion of the footwear upper.
19. The footwear assembly of claim 18, wherein the elastic member
is configured to stretch after the lacing engine has tightened the
lace cable.
20. The footwear assembly of claim 18, wherein the elastic member
had a modulus of elasticity lower than that of the footwear
upper.
21. The footwear assembly of claim 18, wherein the first and second
lace guides are floating relative to the footwear upper.
22. The footwear assembly of claim 18, further comprising a second
elastic member that connects a third lace guide of the plurality of
lace guides to a first portion of the shoe upper.
23. The footwear assembly of claim 22, wherein the third lace guide
is located on either the medial or lateral side of the footwear
upper and the first portion of the shoe upper is located on a
throat portion of the footwear upper.
24. The footwear assembly of claim 23, wherein the third lace guide
is floating relative to the footwear upper.
25. The footwear assembly of claim 18, further comprising a second
elastic member that connects first and second portions of the shoe
upper.
26. The footwear assembly of claim 25, wherein the first portion of
the shoe upper comprises the lateral side and the second portion of
the shoe upper comprises the medial side, wherein the elastic
member spans the heel portion.
27. The footwear assembly of claim 25, wherein the first portion of
the shoe upper comprises the lateral side and the second portion of
the shoe upper comprises the medial side, wherein the second
elastic member spans a throat portion of the footwear upper.
28. The footwear assembly of claim 18, further comprising a
plurality of elastic members incorporated into the lacing system.
Description
BACKGROUND
The present application relates generally to tensioning systems for
footwear. More particularly, the present application relates to
uppers and lacing systems for controlling footwear fit.
Current footwear uppers generally have fixed dimensions and
therefore do not readily permit either to conform to the shape of
the foot. Thus, a wearer typically controls the fit and tension of
the upper with a lacing system. However, in footwear including
motorized lacing engines, the ability of the wearer of the footwear
to tighten the upper around the foot by adjusting the lacing system
with the feel and tactile feedback that can be obtained from manual
lacing systems can become diminished. As such, there is a need for
improving the capabilities of the upper and lacing system to
conform to the shape of the foot with a desired amount of tension,
particularly with automated lacing engines.
BRIEF SUMMARY
The following specification describes various aspects of a footwear
assembly involving a lacing system including a motorized or
non-motorized lacing engine, footwear components related to the
lacing engines, automated lacing footwear platforms, and related
manufacturing processes. More specifically, much of the following
specification describes various aspects of lacing architectures
(configurations) for use in footwear including motorized or
non-motorized lacing engines for centralized lace tightening. The
following specification additionally describes various tensioners
that can be incorporated into the footwear assembly, such as in the
upper of lacing architecture.
A footwear assembly comprises: a footwear upper including a toe box
portion, a medial side, a lateral side, and a heel portion, the
medial side and the lateral side each extending proximally from the
toe box portion to the heel portion; a lace cable with a first end
anchored along a distal outside portion of the medial side and a
second end anchored along a distal outside portion of the lateral
side; a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper; a medial proximal lace guide routing the lace
cable from the pattern formed by a medial portion of the plurality
of lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between first and
second lace guides of the plurality of lace guides.
A footwear assembly comprises: a footwear upper including a toe box
portion, a medial side, a lateral side, and a heel portion, the
medial side and the lateral side each extending proximally from the
toe box portion to the heel portion; a lace cable with a first end
anchored along a distal outside portion of the medial side and a
second end anchored along a distal outside portion of the lateral
side; a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper; a medial proximal lace guide routing the lace
cable from the pattern formed by a medial portion of the plurality
of lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between first and
second portions of the footwear upper.
A footwear assembly comprises: a footwear upper including a toe box
portion, a medial side, a lateral side, and a heel portion, the
medial side and the lateral side each extending proximally from the
toe box portion to the heel portion; a lace cable with a first end
anchored along a distal outside portion of the medial side and a
second end anchored along a distal outside portion of the lateral
side; a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper; a medial proximal lace guide routing the lace
cable from the pattern formed by a medial portion of the plurality
of lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between a first
portion of the footwear upper and a first lace guide of the
plurality of lace guides.
A footwear assembly comprises: a sole structure; a footwear upper
defining a toe box portion, a medial side, a lateral side, and a
heel portion, the footwear upper connected to the sole structure to
form an interior space for receiving a foot, the footwear upper
forming a collar to permit access to the interior space; a lacing
engine disposed in the sole structure; a lacing system comprising:
a lace cable having medial and lateral ends anchored to the
footwear upper and a middle portion passing through the lacing
engine; and a plurality of lace guides for routing the lace cable
along the footwear upper between the medial and lateral ends and
the lacing engine; and a heel channel connected to the heel portion
and configured to facilitate access to the interior space.
A footwear assembly comprises: a sole structure; a footwear upper
defining a toe box portion, a medial side, a lateral side, and a
heel portion, the footwear upper connected to the sole structure to
form an interior space for receiving a foot, the footwear upper
forming a collar to permit access to the interior space; a lacing
engine disposed in the sole structure; a lacing system comprising:
a lace cable having medial and lateral ends anchored to the
footwear upper and a middle portion passing through the lacing
engine; and a plurality of lace guides for routing the lace cable
along the footwear upper between the medial and lateral ends and
the lacing engine; and an elastic member coupled to the footwear
assembly that functions to smooth out a torque versus lace
displacement curve during tightening of the lace cable.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings, which are not necessarily drawn to scale, like
numerals may describe similar components in different views. Like
numerals having different letter suffixes may represent different
instances of similar components. The drawings illustrate generally,
by way of example, but not by way of limitation, various
embodiments discussed in the present document.
FIG. 1 is an exploded view illustration of components of a portion
of a footwear assembly with a motorized lacing system, according to
some example embodiments.
FIG. 2 is a top-view diagram illustrating a lacing architecture for
use with footwear assemblies including a motorized lacing engine,
according to some example embodiments.
FIGS. 3A-3C are top-view diagrams illustrating a flattened footwear
upper with a lacing architecture for use in footwear assemblies
including a motorized lacing engine, according to some example
embodiments.
FIG. 4A is a diagram illustrating a portion of a footwear upper
with a lacing architecture for use in footwear assemblies including
a motorized lacing engine and heel and tongue access control
components in the footwear upper, according to some example
embodiments.
FIG. 4B is a diagram illustrating a portion of a footwear upper
with a lacing architecture for use in footwear assemblies including
heel and tongue elastic members connected to the lacing
architecture.
FIG. 5 is a diagram illustrating a portion of a footwear upper with
a lacing architecture for use in footwear assemblies including a
motorized lacing engine, according to some example embodiments.
FIG. 6 is a diagram illustrating a portion of a footwear upper with
a lacing architecture for use in footwear assemblies including a
motorized lacing engine, according to some example embodiments.
FIGS. 7A-7B are diagrams illustrating a portion of a footwear upper
with a lacing architecture for use in footwear assemblies including
a motorized lacing engine, according to some example
embodiments.
FIGS. 7C-7D are diagrams illustrating deformable lace guides for
use in footwear assemblies, according to some example
embodiments.
FIG. 7E is a graph illustrating various torque versus lace
displacement curves for deformable lace guides, according to some
example embodiments.
FIGS. 8A-8G are diagrams illustrating a lacing guide for use in
certain lacing architectures, according to some example
embodiments.
FIG. 9 is a flowchart illustrating a footwear assembly process for
assembly of footwear including a lacing engine, according to some
example embodiments.
FIG. 10 is a flowchart illustrating a footwear assembly process for
assembly of footwear including a lacing engine, according to some
example embodiments.
FIG. 11 is a diagram illustrating a front view of a partially
cut-away footwear upper showing an elastic strip connecting medial
and lateral side panels of the upper.
FIG. 12 is a diagram illustrating a rear view of the footwear upper
of FIG. 11 showing a heel strap assembly connecting portions of a
lacing cable on medial and lateral sides of the upper.
FIG. 13 is a diagram illustrating a lateral view of the footwear
upper of FIG. 11 partially cut-away to show a lace guide connected
to the footwear upper alongside the elastic strip.
FIG. 14 is a diagram illustrating the footwear upper of FIG. 13
flexed to show the lace guide connected to the footwear upper
separately from the elastic strip.
FIG. 15A is a diagram illustrating the footwear upper of FIG. 12
showing a loosened lacing cable being pulled out of a motorized
lacing engine by a pre-tensioning strap of the heel strap
assembly.
FIG. 15B is a diagram illustrating the footwear upper of FIG. 15A
showing the lacing cable tightened into the motorized lacing engine
and a heel strap of the heel strap assembly tightened around a heel
portion of the footwear upper.
FIG. 16 is a diagram illustrating another embodiment of a footwear
upper showing medial and lateral lacing cable tensioning
straps.
FIG. 17 is a graph illustrating various force versus lace
displacement curves for shoe uppers including various elastic
members described herein, according to some example
embodiments.
FIG. 18 is a diagram illustrating the footwear upper of FIG. 16
laid out flat to show a lacing architecture including tensioning
straps connected to a lace in a cross-over configuration.
FIG. 19 is a diagram illustrating a tensioning strap of FIG. 18
indicating a lockout region and a stretch region.
FIG. 20 is a diagram illustrating another embodiment of a footwear
upper including a lacing architecture including tensioning straps
connected to a lace in a non-cross-over configuration.
FIG. 21 is a top-view diagram illustrating a two-zone lacing
architecture for use with footwear assemblies including a motorized
or non-motorized lacing engine, according to some example
embodiments.
FIG. 22 is top-view perspective view of an article of footwear
incorporating the upper and two-zone lacing architecture of FIG.
21, according to some example embodiments.
Any headings provided herein are merely for convenience and do not
necessarily affect the scope or meaning of the terms used or
discussion under the heading.
DETAILED DESCRIPTION
The concept of self-tightening shoe laces was first widely
popularized by the fictitious power-laced Nike.RTM. sneakers worn
by Marty McFly in the movie Back to the Future II, which was
released back in 1989. While Nike.RTM. has since released at least
one version of power-laced sneakers similar in appearance to the
movie prop version from Back to the Future II, the internal
mechanical systems and surrounding footwear platform employed do
not necessarily lend themselves to mass production or daily use.
Additionally, other previous designs for motorized lacing systems
comparatively suffered from problems such as high cost of
manufacture, complexity, assembly challenges, and poor
serviceability. The present inventors have developed a modular
footwear platform to accommodate motorized and non-motorized lacing
engines that solves some or all of the problems discussed above,
among others. In order to fully leverage the modular lacing engine
discussed briefly below and in greater detail in Application Ser.
No. 62/308,686, titled "LACING APPARATUS FOR AUTOMATED FOOTWEAR
PLATFORM," the present inventors developed a lacing architectures
discussed herein. The lacing architectures discussed herein can
solve various problems experienced with centralized lace tightening
mechanisms, such as uneven tightening, fit, comfort, and
performance. The lacing architectures provide various benefits,
including smoothing out lace tension across a greater lace travel
distance and enhanced comfort while maintaining fit performance.
One aspect of enhanced comfort involves a lacing architecture that
reduces pressure across the top of the foot. Example lacing
architectures can also enhance fit and performance by manipulating
lace tension both a medial-lateral direction as well as in an
anterior-posterior (front to back) direction. Various other
benefits of the components described below will be evident to
persons of skill in the relevant arts.
The lacing architectures discussed were developed specifically to
interface with a modular lacing engine positioned within a mid-sole
portion of a footwear assembly. However, the concepts could also be
applied to motorized and manual lacing mechanisms disposed in
various locations around the footwear, such as in the heel or even
the toe portion of the footwear platform. The lacing architectures
discussed include use of lace guides that can be formed from
tubular plastic, metal clip, fabric loops or channels, plastic
clips, and open u-shaped channels, among other shapes and
materials. In some examples, various different types of lacing
guides can be mixed to perform specific lace routing functions
within the lacing architecture.
The motorized lacing engine discussed below was developed from the
ground up to provide a robust, serviceable, and inter-changeable
component of an automated lacing footwear platform. The lacing
engine includes unique design elements that enable retail-level
final assembly into a modular footwear platform. The lacing engine
design allows for the majority of the footwear assembly process to
leverage known assembly technologies, with unique adaptions to
standard assembly processes still being able to leverage current
assembly resources.
In an example, the modular automated lacing footwear platform
includes a mid-sole plate secured to the mid-sole for receiving a
lacing engine. The design of the mid-sole plate allows a lacing
engine to be dropped into the footwear platform as late as at a
point of purchase. The mid-sole plate, and other aspects of the
modular automated footwear platform, allow for different types of
lacing engines to be used interchangeably. For example, the
motorized lacing engine discussed below could be changed out for a
human-powered lacing engine. Alternatively, a fully automatic
motorized lacing engine with foot presence sensing or other
optional features could be accommodated within the standard
mid-sole plate.
Utilizing motorized or non-motorized centralized lacing engines to
tighten athletic footwear presents some challenges in providing
sufficient performance without sacrificing some amount of comfort.
Lacing architectures discussed herein have been designed
specifically for use with centralized lacing engines, and are
designed to enable various footwear designs from casual to
high-performance.
This initial overview is intended to introduce the subject matter
of the present patent application. It is not intended to provide an
exclusive or exhaustive explanation of the various inventions
disclosed in the following more detailed description.
Automated Footwear Platform
The following discusses various components of the automated
footwear platform including a motorized lacing engine, a mid-sole
plate, and various other components of the platform. While much of
this disclosure focuses on lacing architectures for use with a
motorized lacing engine, the discussed designs are applicable to a
human-powered lacing engine or other motorized lacing engines with
additional or fewer capabilities. Accordingly, the term "automated"
as used in "automated footwear platform" is not intended to only
cover a system that operates without user input. Rather, the term
"automated footwear platform" includes various electrically powered
and human-power, automatically activated and human activated
mechanisms for tightening a lacing or retention system of the
footwear.
FIG. 1 is an exploded view illustration of components of a
motorized lacing system for footwear, according to some example
embodiments. The motorized lacing system 1 illustrated in FIG. 1
includes a lacing engine 10, a lid 20, an actuator 30, a mid-sole
plate 40, a mid-sole 50, and an outsole 60. FIG. 1 illustrates the
basic assembly sequence of components of an automated lacing
footwear platform. The motorized lacing system 1 starts with the
mid-sole plate 40 being secured within the mid-sole. Next, the
actuator 30 is inserted into an opening in the lateral side of the
mid-sole plate opposite to interface buttons that can be embedded
in the outsole 60. Next, the lacing engine 10 is dropped into the
mid-sole plate 40. In an example, the lacing system 1 is inserted
under a continuous loop of lacing cable and the lacing cable is
aligned with a spool in the lacing engine 10 (discussed below).
Finally, the lid 20 is inserted into grooves in the mid-sole plate
40, secured into a closed position, and latched into a recess in
the mid-sole plate 40. The lid 20 can capture the lacing engine 10
and can assist in maintaining alignment of a lacing cable during
operation.
In an example, the footwear article or the motorized lacing system
1 includes or is configured to interface with one or more sensors
that can monitor or determine a foot presence characteristic. Based
on information from one or more foot presence sensors, the footwear
including the motorized lacing system 1 can be configured to
perform various functions. For example, a foot presence sensor can
be configured to provide binary information about whether a foot is
present or not present in the footwear. If a binary signal from the
foot presence sensor indicates that a foot is present, then the
motorized lacing system 1 can be activated, such as to
automatically tighten or relax (i.e., loosen) a footwear lacing
cable. In an example, the footwear article includes a processor
circuit that can receive or interpret signals from a foot presence
sensor. The processor circuit can optionally be embedded in or with
the lacing engine 10, such as in a sole of the footwear
article.
Lacing Architectures
FIG. 2 is a top view diagram of upper 200 illustrating an example
lacing configuration, according to some example embodiments. In
this example, the upper 205 includes lateral lace fixation 215,
medial lace fixation 216, lateral lace guides 222, medial lace
guides 220, and brio cables 225, in additional to lace 210 and
lacing engine 10. The example illustrated in FIG. 2 includes a
continuous knit fabric upper 205 with diagonal lacing pattern
involving non-overlapping medial and lateral lacing paths. The
lacing paths are created starting at the lateral lace fixation 215
running through the lateral lace guides 222 through the lacing
engine 10 up through the medial lace guides 220 back to the medial
lace fixation 216. In this example, lace 210 forms a continuous
loop from lateral lace fixation 215 to medial lace fixation 216.
Medial to lateral tightening is transmitted through brio cables 225
in this example. In other examples, the lacing path may crisscross
or incorporate additional features to transmit tightening forces in
a medial-lateral direction across the upper 205. Additionally, the
continuous lace loop concept can be incorporated into a more
traditional upper with a central (medial) gap and lace 210
crisscrossing back and forth across the central gap.
FIGS. 3A-3C are top-view diagrams illustrating a flattened footwear
upper 305 with a lacing architecture 300 for use in footwear
assemblies including a motorized lacing engine, according to some
example embodiments. For the purposes of discussing example
footwear uppers, the upper 305 is assumed to be designed for
incorporation into a right foot version of a footwear assembly.
FIG. 3A is a top-view diagram of a flattened footwear upper 305
with a lacing architecture 300 as illustrated. In this example,
footwear upper 305 includes a series of lace guides 320A-320J
(collectively referred to as lace guide(s) 320) with a lace cable
310 running through the lace guides 320. The lace cable 310, in
this example, forms a loop that is terminated on each side of the
upper 305 at a lateral lace fixation 345A and a medial lace
fixation 345B (collectively referred to as lace fixation points
345) with the middle portion of the loop routed through a lacing
engine within a mid-sole of the footwear assembly. The upper 305
also includes reinforcements associated with each of the series of
lace guides 320. The reinforcements can cover individual lace
guides or span multiple lace guides. In this example, the
reinforcements include a central reinforcement 325, a first lateral
reinforcement 335A, a first medial reinforcement 335B, a second
lateral reinforcement 330A, a second medial reinforcement 330B. The
middle portion of the lace cable 310 is routed to and/or from the
lacing engine via a lateral rear lace guide 315A and a medial rear
lace guide 315B, and exits and/or enters the upper 300 through a
lateral lace exit 340A and a medial lace exit 340B.
The upper 305 can include different portions, such as a forefoot
(toe) portion 307, a mid-foot portion 308, and a heel portion 309.
The forefoot portion 307 corresponding with joints connecting
metatarsal bones with phalanx bones of a foot. The mid-foot point
308 may correspond with an arch area of the foot. The heel portion
309 may correspond with the rear or heel portions of the foot.
Medial and lateral heel portions 309 can be connected via heel
member 350, which may comprise medial strip 352 and lateral strip
354. The medial and lateral sides of the mid-foot portion of the
upper 305 can include a central portion 306. In some common
footwear designs the central portion 306 can include an opening
spanned by crisscrossing (or similar) pattern of laces that allows
for the fit of the footwear upper around the foot to be adjusted. A
central portion 306 including an opening also facilitates entry and
removal of the foot from the footwear assembly.
The lace guides 320 are tubular or channel structures to retain the
lace cable 310, while routing the lace cable 310 through a pattern
along each of a lateral side and a medial side of the upper 305. In
this example, the lace guides 320 are u-shaped plastic tubes laid
out in an essentially sinusoidal wave pattern, which cycles up and
down along the medial and lateral sides of the upper 305. The
number of cycles completed by the lace cable 310 may vary depending
on shoe size. Smaller sized footwear assemblies may only be able to
accommodate one and one half cycles, with the example upper 305
accommodating two and one half cycles before entering the medial
rear lace guide 315B or the lateral rear lace guide 315A. The
pattern is described as essentially sinusoidal, as in this example
at least, the u-shape guides have a wider profile than a true sine
wave crest or trough. In other examples, a pattern more closely
approximating a true sine wave pattern could be utilized (without
extensive use of carefully curved lace guides, a true sine wave is
not easily attained with a lace stretched between lace guides). The
shape of the lace guides 320 can be varied to generate different
torque versus lace displacement curves, where torque is measured at
the lacing engine in the mid-sole of the shoe. Using lace guides
with tighter radius curves, or including a higher frequency of wave
pattern (e.g., greater number of cycles with more lace guides), can
result in a change to the torque versus lace displacement curve.
For example, with tighter radius lace guides the lace cable
experiences higher friction, which can result in a higher initial
torque, which may appear to smooth out the torque out over the
torque versus lace displacement curve. However, in certain
implementations it may be more desirable to maintain a low initial
torque level (e.g., by keep friction within the lace guides low)
while utilizing lace guide placement pattern or lace guide design
to assist in smoothing the torque versus lace displacement curve.
One such lace guide design is discussed in reference to FIGS. 7A
and 7B, with another alternative lace guide design discussed in
reference to FIGS. 8A through 8G. In addition to the lace guides
discussed in reference to these figures, lace guides can be
fabricated from plastics, polymers, metal, or fabric. For example,
layers of fabric can be used to create a shaped channel to route a
lace cable in a desired pattern. As discussed below, combinations
of plastic or metal guides and fabric overlays can be used to
generate guide components for use in the discussed lacing
architectures.
Returning to FIG. 3A, the reinforcements 325, 335, and 330 are
illustrated associated with different lace guides, such as lace
guides 320. In an example, the reinforcements 335 can include
fabric impregnated with a heat activated adhesive that can be
adhered over the top of lace guides 320G, 320H, a process sometimes
referred to as hot melt. The reinforcements can cover a number of
lace guides, such as reinforcement 325, which in this example
covers six upper lace guides positioned adjacent to a central
portion of the footwear, such as central portion 306. In another
example, the reinforcement 325 could be split down the middle of
the central portion 306 to form two pieces covering lace guides
along a medial side of the central portion 306 separately from lace
guides along a lateral side of the central portion 306. In yet
another alternative example, the reinforcement 325 could be split
into six separate reinforcements covering individual lace guides.
Use of reinforcements can vary to change the dynamics of
interaction between the lace guides and the underlying footwear
upper, such as upper 305. Reinforcements can also be adhered to the
upper 305 in various other manners, including sewing, adhesives, or
a combination of mechanisms. The manner of adhering the
reinforcement in conjunction with the type of fabric or materials
used for the reinforcements can also impact the friction
experienced by the lace cable running through the lace guides. For
example, a more rigid material hot melted over otherwise flexible
lace guides can increase the friction experienced by the lace
cable. In contrast, a flexible material adhered over the lace
guides may reduce friction by maintaining more of the lace guide
flexibility. Reinforcement 325 could also comprise an elastic mesh
to cover a throat area of the footwear upper.
As mentioned above, FIG. 3A illustrates a central reinforcement 325
that is a single member spanning the medial and lateral upper lace
guides (320A, 320B, 320E, 320F, 320I, and 320J). Assuming
reinforcement 325 is more rigid material with less flexibility than
the underlying footwear upper, upper 305 in this example, the
resulting central portion 306 of the footwear assembly will exhibit
less forgiving fit characteristics. In some applications, a more
rigid, less forgiving, central portion 306 may be desirable.
However, in applications where more flexibility across the central
portion 306 is desired, the central reinforcement 325 can be
separated into two or more reinforcements. In certain applications,
separated central reinforcements can be coupled across the central
portion 306 using a variety of flexible or elastic materials to
enable a more form fitting central portion 306. In another example,
central reinforcement 325 can itself be elastic. In some examples,
the upper 305 can have a small gap running the length of the
central portion 306 with one or more elastic members spanning the
gap and connecting multiple central reinforcements, such as is at
least partially illustrated in FIG. 4A with lace guide 410 and
elastic member 440.
Heel member 350 can comprise a device or component that can be used
to control access to footwear upper 305 and, additionally or
alternatively, control the effective spring stiffness of footwear
upper 305. In an example, medial strip 352 and lateral strip 354
can comprise elastic strops that are sewn or otherwise attached to
medial and lateral heel portions 309, respectively, and are sewn to
each other. In other embodiments, only a single elastic strip is
connected to medial and lateral heel portions 309. Thus, strips 352
and 354 can provide a degree of stretchability to the heel portion
of footwear upper 305. This effect can be used to provide various
comfort and performance aspects to upper 305 as described below.
For example, the elasticity can help heel portions 309 remain
engaged with the heel of a wearer during use of the article of
footwear. Strips 352 and 354 can comprise elastic, spandex, rubber
or the like.
In another embodiment, medial strip 352 and lateral strip 354 can
comprise components that are releasably engaged so that a user of
the article of footwear can selectively open and close footwear
upper 305. For example, strips 352 and 354 can comprise opposing
components of hook and loop fastener material, or opposing
components of a zipper structure. In such embodiments, heel member
350 can provide ingress and egress of a foot into footwear upper
305 regardless of the state of lace cable 310. More specifically,
heel member 350 can permit a foot to be withdrawn from footwear
upper 305 even if the lacing engine has drawn lace cable 310 into
the sole structure to cinch lace cable 310 down onto footwear upper
305.
FIG. 3B is another top-view diagram of the flattened footwear upper
305 with a lacing architecture 300 as illustrated. In this example,
footwear upper 305 includes a similar lace guide pattern including
lace guides 320 with modifications to the configuration of
reinforcements 325, 330, and 335. As discussed above, the
modifications to the reinforcements configuration will result in at
least slightly different fit characteristics and may also change
the torque versus lace displacement curve.
FIG. 3C is a series of lacing architecture examples illustrated on
flattened footwear uppers according to example embodiments. Lace
architecture 300A illustrates a lace guide pattern similar to the
sine wave pattern discussed in reference to FIG. 3A with individual
reinforcements covering each individual lace guide. Lace
architecture 300B once again illustrates a wave lacing pattern,
also referred to as parachute lacing, with elongated reinforcements
covering upper lace guide pairs spanning across a central portion
and individual lower lace guides. Lace architecture 300C is yet
another wave lacing pattern with a single central reinforcement.
Lace architecture 300D introduces a triangular shaped lace pattern
with individual reinforcements cut to form fit over the individual
lace guides. Lace architecture 300E illustrates a variation in
reinforcement configuration in the triangular lace pattern.
Finally, lace architecture 300F illustrates another variation in
reinforcement configuration including a central reinforcement and
consolidated lower reinforcements.
FIG. 4A is a diagram illustrating a portion of a footwear upper 405
with a lacing architecture 400 for use in footwear assemblies
including a motorized lacing engine, according to some example
embodiments. In this example, a medial portion of upper 405 is
illustrated with lace guides 410 routing lace cable 430 through to
medial exit guide 415. Lace guides 410 are encapsulated in
reinforcements 420 to form lace guide components 415, with at least
a portion of the lace guide components being repositionable on
upper 405. In one example, the lace guide components 415 are backed
with hook-n-loop material and the upper 405 provides a surface
receptive to the hook-n-loop material. In this example, the lace
guide components 415 can be backed with the hook portion with the
upper 405 providing a knit loop surface to receive the lace guide
components 415. In another example, lace guide components 415 can
have a track interface integrated to engage with a track, such as
track 445. A track-based integration can provide a secure, limited
travel, movement option for lace guide components 415. For example,
track 445 runs essentially perpendicular to the longitudinal axis
of the central portion 450 and allows for positioning a lace guide
component 415 along the length of the track. In some examples, the
track 445 can span across from a lateral side to a medial side to
hold a lace guide component on either side of central portion 450.
Similar tracks can be positioned in appropriate places to hold all
of the lace guide components 415, enabling adjustment in
restrictions directions for all lace guides on footwear upper
405.
The footwear upper 405 illustrates another example lacing
architecture including central elastic members, such as elastic
member 440. In these examples, at least the upper lace guide
components along the medial and lateral sides can be connected
across the central portion 450 with elastic members that allow for
different footwear designs to attain different levels of fit and
performance. For example, a high performance basketball shoe that
needs to secure a foot through a wide range of lateral movement may
utilize elastic members with a high modulus of elasticity to ensure
a snug fit. In another example, a running shoe may utilize elastic
members with a low modulus of elasticity, as the running shoe may
be designed to focus on comfort for long distance road running
versus providing high levels of lateral motion containment. In
certain examples, the elastic members 440 can be interchangeable or
include a mechanism to allow for adjustment of the level of
elasticity. As discussed above, in some examples the footwear
upper, such as upper 405, can include a gap along central portion
450 at least partially separating a medial side from a lateral
side. Even with a small gap along central portion 450 elastic
members, such as elastic member 440, can be used to span the
gap.
While FIG. 4A only illustrates a single track 445 or a single
elastic member 440, these elements can be replicated for any or all
of the lace guides in a particular lacing architecture. For
example, each lace guide component 415 could be mounted to its own
track 445 that extends generally in a medial-lateral direction
across central portion 450. The position of each lace guide
component 415 can be correlated to the presence of a foot within
footwear upper 405. For example, if a presence sensor, such as a
contact switch within a sole structure detects the weight of a foot
in footwear upper 405, lace guide components 415 can be drawn
closer to central portion 450 to take up slack in lace cable 430 to
cinch footwear upper 405 down on the foot. However, if the presence
sensors to not detect the weight of a foot within footwear upper
405, lace guide components 415 can be retracted away from central
portion 450 to facilitate entry of a foot into footwear upper 405
by causing slack to be introduced in lace cable 430. In such
embodiments, the drive mechanism of the lacing cable can be
additionally used to move lace guide components 415 on tracks 445.
In other embodiments, one or more additional drive mechanisms,
e.g., motors, can be incorporated into the article of footwear.
Furthermore, in such an embodiment, central reinforcement 325 can
be added at central portion to provide an elastic zone or to,
additionally or alternatively, provide an opening, such as a zipper
(e.g., zipper 465), to footwear upper 405.
FIG. 4B additionally shows heel strap 480 that spans heel ridge 650
and multiple elastic members 440 at lace guides 415. Heel strap 480
and elastic members 440 can be used to control the effective spring
stiffness of footwear upper 405. As discussed above, elasticity
provided by various strips, such as heel strap 480 and elastic
members 440, can provide a degree of stretchability to footwear
upper 405, thereby allowing various comfort and performance aspects
of upper 405 to be controlled. In examples, heel strap 480 can be
directly connected to a heel lacing component guide 615 on medial
and lateral sides of heel ridge 650. Alternatively, heel strap 480
can be connected to lacing component guide 615 at one end and sewn
into footwear upper 605 at heel ridge 650. In such an embodiment, a
single heel strap 480 can be used on the medial or lateral side of
footwear upper 605, or a heel strap 480 can be used on each of the
medial and lateral sides of footwear upper 605. Heel lacing
component guides 615 can be disconnected from footwear upper 405
such that they are suspended relative to footwear upper 405 by lace
cable 430 and heel strap 480. Elastic member 440 can pre-tension
heel lacing component guide 615 to the rear or heel portion of
footwear upper 405 to cause lace cable 430 to be pulled out of a
lacing engine in a loosened state. However, as the lacing engine
winds lace cable 430 into a tightened state, heel strap 480 can
stretch to allow lace cable 430 to be cinched down on footwear
upper 405, and the heel portion of the footwear upper 405 to be
drawn down on a heel of a wearer.
Elastic members 440 can provide an additional degree of
stretchability to footwear upper 405. Elastic members 440 can be
attached to lace guide components 415 at one end and at the other
end be connected to either another opposite lace guide component
415 or footwear upper 405, such as at central portion 450. As with
heel strap 480, elastic members 440 can be used to pull lace cable
430 from the lacing engine, but can be stretched to permit lace
cable 430 to be cinched down on footwear upper 405.
Heel strap 480, elastic members 440 and an elastic central
reinforcement 325 can each provide a degree of stretchability to a
footwear upper that can introduce different comfort and performance
zones within the lacing action provided by the lacing mechanism.
FIG. 17 illustrates various comfort and performance curves of
different example footwear uppers incorporating different
combinations of lace cable 480, elastic members 440, an elastic
heel member 350, and an elastic central reinforcement 325.
FIG. 5 is a diagram illustrating a portion of footwear upper 405
with lacing architecture 400 for use in footwear assemblies
including a motorized lacing engine, according to some example
embodiments. In this example, the central portion 450 illustrated
in FIG. 4A is replaced with a central closure mechanism 460, which
is illustrated in this example as a central zipper 465. The central
closure mechanism is designed to enable a wider opening in the
footwear upper 405 for easy entry and exit. The central zipper 465
can be easily unzipped to enable foot entry or exit. In other
examples, the central closure 460 can be hook and loop, snaps,
clasps, toggles, secondary laces, or any similar closure
mechanism.
FIG. 6 is a diagram illustrating a portion of footwear upper 405
with a lacing architecture 600 for use in footwear assemblies
including a motorized lacing engine, according to some example
embodiments. In this example, lacing architecture 600 adds a heel
lacing component 615 including a heel lacing guide 610 and a heel
reinforcement 620 as well as a heel redirect guide 610 and a heel
exit guide 615. The heel redirect guide 610 shifts the lace cable
430 from exiting the last lace guide 410 towards a heel lacing
component 615. The heel lacing component 615 is formed from a heel
lacing guide 610 with a heel reinforcement 620. The heel lacing
guide 610 is depicted with a similar shape to lacing guides used in
other locations on upper 405. However, in other examples the heel
lacing guide 610 can be other shapes or include multiple lace
guides. In this example, the heel lace component 615 is shown
mounted on a heel track 645 allowing for adjustability of the
location of the heel lace component 615. Similar to the adjustable
lace guides discussed above, other mechanisms can be utilized to
enable adjustment in positioning of the heel lace component 615,
such as hook and loop fasteners or comparable fastening
mechanisms.
In some examples, the upper 405 includes a heel ridge 650, which
like the central portion 450 discussed above can include a closure
mechanism. In examples with a heel closure mechanism, the heel
closure mechanism is designed to provide easy entry and exit from
the footwear by expanding a traditional footwear assembly foot
opening. Additionally, in some examples, the heel lacing component
615 can be connected across the heel ridge 650 (with or without a
heel closure mechanism) to a matching heel lacing component on the
opposite side. The connection can include an elastic member,
similar to elastic member 440.
FIG. 7A-7B are diagrams illustrating a portion of footwear upper
405 with a lacing architecture 700 for use in footwear assemblies
including a motorized lacing engine, according to some example
embodiments. In this example, the lacing architecture 700 includes
lace guides 710 for routing lace 730. The lace guides 710 can
include associated reinforcements 720. In this example, the lace
guides 710 are configured to allow for flexing of portions of the
lace guides 710 from an open initial position illustrated in FIG.
7A to a flexed closed position illustrated in FIG. 7B (with phantom
lines illustrating the opposition positions in each figure for
reference). In this example, the lace guides 710 include extension
portions that exhibit flex of approximately 14 degrees between the
open initial position and the closed position. Other examples, can
exhibit more or less flex between an initial and final position (or
shape) of the lace guide 710. The flexing of the lace guides 710
occurs as the lace 730 is tightened. The flexing of the lace guides
710 works to smooth out the torque versus lace displacement curve
by applying some initial tension to the lace 730 and providing an
additional mechanism to dissipate lace tension during the
tightening process. Accordingly, in an initial shape or flex
position, lace guide 710 creates some initial tension in the lace
cable, which also functions to take up slack in the lace cable.
When tightening of the lace cable begins, the lace guide 710 flexes
or deforms
The lace guides 710, in this example, are plastic or polymer tubes
and can have different modulus of elasticity depending upon the
particular composition of the tubes. The modulus of elasticity of
the lace guides 710 along with the configuration of the
reinforcements 720 will control the amount of additional tension
induced in the lace 730 by flexing of the lace guides 710. The
elastic deformation of the ends (legs or extensions) of the lace
guides 710 induces a continued tension on the lace 730 as the lace
guides 710 attempt to return to original shape. In some examples,
the entire lace guide flexes uniformly over the length of the lace
guide. In other examples, the flex occurs primarily within the
u-shaped portion of the lace guide with the extensions remaining
substantially straight. In yet other examples, the extensions
accommodate most of the flex with the u-shaped portion remaining
relatively fixed.
The reinforcements 720 are adhered over the lace guides 710 in a
manner that allows for movement of the ends of the lace guides 710.
In some examples, reinforcements 720 are adhered through the hot
melt process discussed above, with the placement of the heat
activated adhesive allowing for an opening to enable flex in the
lace guides 710. In other embodiments, the reinforcements 720 can
be sewed into place or use a combination of adhesives and
stitching. How the reinforcements 720 are adhered or structured can
affect what portion of the lace guide flexes under load from the
lace cable. In some examples, the hot melt is concentrated around
the u-shaped portion of the lace guide leaving the extensions
(legs) more free to flex.
FIGS. 7C-7D are diagrams illustrating deformable lace guides 710
for use in footwear assemblies, according to some example
embodiments. In this example, lace guides 710 introduced above in
reference to FIGS. 7A and 7B are discussed in additional detail.
FIG. 7C illustrates the lace guide 710 in a first (open) state,
which can be considered a non-deformed state. FIG. 7D illustrates
the lace guide 710 in a second (closed/flexed) state, which can be
considered a deformed state. The lace guide 710 can include three
different sections, such as a middle section 712, a first extension
714, and a second extension 716. The lace guide 710 can also
include a lace reception opening 740 and a lace exit opening 742.
As mentioned above, lace guide 710 can have different modulus of
elasticity, which controls the level of deformation with a certain
applied tension. In some examples, the lace guide 710 can be
constructed with different sections having different modulus of
elasticity, such as the middle section 712 having a first modulus
of elasticity, the first extension having a second modulus of
elasticity and the second extension having a third modulus of
elasticity. In certain examples, the second and third moduli of
elasticity can be substantially similar, resulting in the first
extension and the second extension flexing or deforming in a
similar manner. In this example, substantially similar can be
interpreted as the moduli of elasticity being within a few
percentage points of each other. In some examples, the lace guide
710 can have a variable modulus of elasticity shifting from a high
modulus at the apex 746 to a low modulus towards the outer ends of
the first extension and the second extension. In these examples,
the modulus can vary based on wall thickness of the lace guide
710.
The lace guide 710 defines a number of axes useful is describing
how the deformable lace guide functions. For example, the first
extension 714 can define an first incoming lace axis 750, which
aligns with at least an outer portion of an inner channel defined
within the first extension 714. The second extension 716 defines an
first outgoing lace axis 760, which aligns with at least an outer
portion of an inner channel defined within the second extension
716. Upon deformation, the lace guide 710 defines a second incoming
lace axis 752 and a second outgoing lace axis 762, which are each
aligned with respective portions of the first extension and the
second extension. The lace guide 710 also includes a medial axis
744 that intersects the lace guide 710 at the apex 746 and is
equidistant from the first extension and the second extension
(assuming a symmetrical lace guide in a non-deformed state as
illustrated in FIG. 7C).
FIG. 7E is a graph 770 illustrating various torque versus lace
displacement curves for deformable lace guides, according to some
example embodiments. As discussed above, one of the benefits
achieved using lace guides 710 involves modifying torque (or lace
tension) versus lace displacement (or shortening) curves. Curve 776
illustrates a torque versus displacement curve for a non-deformable
lace guide used in an example lacing architecture. The curve 776
illustrates how laces experience a rapid increase in tension over a
short displacement near the end of the tightening process. In
contrast, curve 778 illustrates a torque versus displacement curve
for a first deformable lace guide used in an example lacing
architecture. The cure 778 begins in a fashion similar to curve
776, but as the lace guides deform with additional lace tension the
curve is flattened, resulting in tension increasing over a larger
lace displacement. Flattening out the curves allows for more
control of fit and performance of the footwear for the end
users.
The final example is split into three segments, an initial
tightening segment 780, an adaptive segment 782, and a reactive
segment 784. The segments 780, 782, 784 may be utilized in any
circumstance where the torque and resultant displacement is
desired. However, the reactive segment 784 may particularly be
utilized in circumstances where the motorized lacing engine makes
sudden changes or corrections in the displacement of the lace in
reaction to unanticipated external factors, e.g., the wearer has
abruptly stopped moving, resulting in a relatively high load on the
lace. The adaptive segment 782, by contrast, may be utilized when
more gradual displacement of the lace may be utilized because a
change in the load on the lace may be anticipated, e.g., because
the change in load may be less sudden or a change in activity is
input into the motorized lacing engine by the wearer or the
motorized lacing engine is able to anticipate a change in activity
through machine learning. The deformable lace guide design
resulting in this final example, is designed to create the adaptive
segment 782 and reactive segment 784 through lace guide structural
design (such as channel shape, material selection, or a combination
parameters). The lacing architecture and lace guides producing the
final example, also produce a pre-tension in the lace cable
resulting in the illustrated initial tightening segment 780.
FIGS. 8A-8F are diagrams illustrating an example lacing guide 800
for use in certain lacing architectures, according to some example
embodiments. In this example, an alternative lace guide with an
open lace channel is illustrated. The lacing guide 800 includes a
guide tab 805, a stitch opening 810, a guide superior surface 815,
a lace retainer 820, a lace channel 825, a channel radius 830, a
lace access opening 840, a guide inferior surface 845, and a guide
radius 850. Advantages of an open channel lace guide, such as
lacing guide 800, include the ability to easily route the lace
cable after installation of the lace guides on the footwear upper.
With tubular lace guides as illustrated in many of the lace
architecture examples discussed above, routing the lace cable
through the lace guides is most easily accomplish before adhering
the lace guides to the footwear upper (not to say it cannot be
accomplished later). Open channel lace guides facilitate simple
lace routing by allowing the lace cable to simply be pushed pass
the lace retainer 820 after the lace guides 800 are positioned on
the footwear upper. The lacing guide 800 can be fabricated from
various materials including metal or plastics.
In this example, the lacing guide 800 can be initially attached to
a footwear upper through stitching or adhesives. The illustrated
design includes a stitch opening 810 that is configured to enable
easy manual or automated stitching of lacing guide 800 onto a
footwear upper (or similar material). Once lacing guide 800 is
attached to the footwear upper, lace cable can be routed by simply
pulling a loop of lace cable into the lace channel 825. The lace
access opening 840 extends through the inferior surface 845 to
provide a relief recess for the lace cable to get around the lace
retainer 820. In this example, the channel radius 830 is designed
to correspond to, or be slightly larger then, the diameter of the
lace cable. The channel radius 830 is one of the parameters of the
lacing guide 800 that can control the amount of friction
experienced by the lace cable running through the lacing guide 800.
Another parameter of lacing guide 800 that impacts friction
experienced by the lace cable includes guide radius 850. The guide
radius 850 also may impact the frequency or spacing of lace guides
positioned on a footwear upper.
FIG. 8G is a diagram illustrating a portion of footwear upper 405
with a lacing architecture 890 using lacing guides 800, according
to some example embodiments. In this example, multiple lacing
guides 800 are arranged on a lateral side of footwear upper 405 to
form half of the lacing architecture 890. Similar to lacing
architectures discussed above, lacing architecture 890 uses lacing
guides 800 to form a wave pattern or parachute lacing pattern to
route the lace cable. One of the benefits of this type of lacing
architecture is that lace tightening can produce both later-medial
tightening as well as anterior-posterior tightening of the footwear
upper 405.
In this example, lacing guides 800 are at least initially adhered
to upper 405 through stitching 860. The stitching 860 is shown over
or engaging stitch opening 810. One of the lacing guide 800 is also
depicted with a reinforcement 870 covering the lacing guide. Such
reinforcements can be positioned individually over each of the
lacing guides 800. Alternatively, larger reinforcements could be
used to cover multiple lacing guides. Similar to the reinforcements
discussed above, reinforcement 870 can be adhered through
adhesives, heat-activated adhesives, and/or stitching. In some
examples, reinforcement 870 can be adhered using adhesives
(heat-activated or not) and a vacuum bagging process that uniformly
compresses the reinforcement over the lacing guide. A similar
vacuum bagging process can also be used with reinforcements and
lacing guides discussed above. In other examples, mechanical
presses or similar machines can be used to assist with adhering
reinforcements over lacing guides.
Once all of the lacing guides 800 are initially positioned and
attached to footwear upper 405, the lace cable can be routed
through the lacing guides. Lace cable routing can begin with
anchoring a first end of the lace cable at lateral anchor point
470. The lace cable can then be pulled into each lace channel 825
starting with the anterior most lacing guide and working
posteriorly towards the heel of upper 405. Once the lace cable is
routed through all lacing guides 800, reinforcements 870 can be
optionally adhered over each of the lacing guides 800 to secure
both the lacing guides and the lace cable.
Assembly Processes
FIG. 9 is a flowchart illustrating a footwear assembly process 900
for assembly of footwear including a lacing engine, according to
some example embodiments. In this example, the assembly process 900
includes operations such as: obtaining footwear upper, lace guides,
and lace cable at 910; routing lace cable through tubular lace
guides at 920; anchoring a first end of the lace cable at 930;
anchoring a second end of lace cable at 940; positioning lace
guides at 950; securing lace guides at 960; and integrating upper
with footwear assembly at 970. The process 900 described in further
detail below can include some or all of the process operations
described and at least some of the process operations can occur at
various locations and/or using different automated tools.
In this example, the process 900 begins at 910 by obtaining a
footwear upper, a plurality of lace guides, and a lace cable. The
footwear upper, such as upper 405, can be a flattened footwear
upper separated from the remainder of a footwear assembly (e.g.,
sole, mid-sole, outer cover, etc. . . . ). The lace guides in this
example include tubular plastic lace guides as discussed above, but
could also include other types of lace guides. At 920, the process
900 continues with the lace cable being routed (or threaded)
through the plurality of lace guides. While the lace cable can be
routed through the lace guides at a different point in the assembly
process 900, when using tubular lace guides routing the lace
through the lace guides prior to assembly onto the footwear upper
may be preferable. In some examples, the lace guides can be
pre-threaded onto the lace cable, with process 900 beginning with
multiple lace guides already threaded onto the lace obtained during
the operation at 910.
At 930, the process 900 continues with a first end of the lace
cable being anchored to the footwear upper. For example, lace cable
430 can be anchored along a lateral edge of upper 405. In some
examples, the lace cable may be temporary anchored to the upper 405
with a more permanent anchor accomplished during integration of the
footwear upper with the remaining footwear assembly. At 940, the
process 900 can continue with a second end of the lace cable being
anchored to the footwear upper. Like the first end of the lace
cable, the second end can be temporarily anchored to the upper.
Additionally, the process 900 can optionally delay anchoring of the
second end until later in the process or during integration with
the footwear assembly.
At 950, the process 900 continues with the plurality of lace guides
being positioned on the upper. For example, lace guides 410 can be
positioned on upper 405 to generate the desired lacing pattern.
Once the lace guides are positioned, the process 900 can continue
at 960 by securing the lace guides onto the footwear upper. For
example, the reinforcements 420 can be secured over lace guides 410
to hold them in position. Finally, the process 900 can complete at
970 with the footwear upper being integrated into the remainder of
the footwear assembly, including the sole. In an example,
integration can include positioning the loop of lace cable
connecting the lateral and medial sides of the footwear upper in
position to engage a lacing engine in a mid-sole of the footwear
assembly.
FIG. 10 is a flowchart illustrating a footwear assembly process
1000 for assembly of footwear including a plurality of lacing
guides, according to some example embodiments. In this example, the
assembly process 1000 includes operations such as: obtaining
footwear upper, lace guides, and lace cable at 1010; securing
lacing guides on footwear upper at 1020; anchoring a first end of
the lace cable at 1030; routing lace cable through the lace guides
at 1040; anchoring a second end of lace cable at 1050; optionally
securing reinforcements over the lace guides at 1060; and
integrating upper with footwear assembly at 1070. The process 1000
described in further detail below can include some or all of the
process operations described and at least some of the process
operations can occur at various locations and/or using different
automated tools.
In this example, the process 1000 begins at 1010 by obtaining a
footwear upper, a plurality of lace guides, and a lace cable. The
footwear upper, such as upper 405, can be a flattened footwear
upper separated from the remainder of a footwear assembly (e.g.,
sole, mid-sole, outer cover, etc. . . . ). The lace guides in this
example include open channel plastic lacing guides as discussed
above, but could also include other types of lace guides. At 1020,
the process 1000 continues with the lacing guides being secured to
the upper. For example, lacing guides 800 can be individually
stitched in position on upper 405.
At 1030, the process 1000 continues with a first end of the lace
cable being anchored to the footwear upper. For example, lace cable
430 can be anchored along a lateral edge of upper 405. In some
examples, the lace cable may be temporary anchored to the upper 405
with a more permanent anchor accomplished during integration of the
footwear upper with the remaining footwear assembly. At 1040, the
process 1000 continues with the lace cable being routed through the
open channel lace guides, which includes leaving a lace loop for
engagement with a lacing engine between the lateral and medial
sides of the footwear upper. The lace loop can be a predetermined
length to ensure the lacing engine is able to properly tighten the
assembled footwear.
At 1050, the process 1000 can continue with a second end of the
lace cable being anchored to the footwear upper. Like the first end
of the lace cable, the second end can be temporarily anchored to
the upper. Additionally, the process 1000 can optionally delay
anchoring of the second end until later in the process or during
integration with the footwear assembly. In certain examples,
delaying anchoring of the first and/or second end of the lace cable
can allow for adjustment in overall lace length, which may be
useful during integration of the lacing engine.
At 1060, the process 1000 can optionally include an operation for
securing fabric reinforcements (covers) over the lace guides to
further secure them to the footwear upper. For example, lacing
guides 800 can have reinforcements 870 hot melted over the lacing
guides to further secure the lacing guides and the lace cable.
Finally, the process 1000 can complete at 1070 with the footwear
upper being integrated into the remainder of the footwear assembly,
including the sole. In an example, integration can include
positioning the loop of lace cable connecting the lateral and
medial sides of the footwear upper in position to engage a lacing
engine in a mid-sole of the footwear assembly.
Tensioning Straps
FIG. 11 is a diagram illustrating a front view of partially
cut-away footwear upper 1100 showing elastic strip 1102 connecting
medial side 1104 and lateral side 1106 of footwear upper 1100.
Footwear upper 1100 can be connected to sole structure 1108 in
which a motorized lacing engine can be disposed. Footwear upper
1100 can include internal layers, such as medial panel 1110 and
lateral panel 1112, which are configured to surround the foot.
Medial panel 1110 and lateral panel 1112 can include additional
layers, such as lining or padding layers (not shown). Elastic strip
1102 can be connected to both of medial panel 1110 and lateral
panel 1112.
Footwear upper 1110 can also include lace guides 1114, lace 1116
and outer layer 1118. Upper 1100 can include outer layer 1118 that
is configured to cover lace 1116, elastic strip 1102 and lace
guides 1114. Outer layer 1118 is cut-away in FIG. 11 to show medial
panel 1110, lateral panel 1112, elastic strip 1102, lace guides
1114 and lace 1116.
Lace guides 1114 can be connected to medial panel 1110 and lateral
panel 1112. Lace guides 1114 can each include guide tab 1115 and
lace channel body 1117. Guide tabs 1115 can be mounted directly to
panels 1110 and 1112, such as via adhesive, stitching, riveting or
the like. Lace guides 1114 can be configured similarly as other
lace guides described herein. Lace 1116 can be threaded through a
channel disposed in lace channel body 1117 of lace guides 1114.
Lace 1116 can have distal portions that are anchored to upper
toward the toe region and a proximal portion that connects the
distal portions and that is located within the lacing engine.
As discussed herein, operation of the lacing engine can act to
cinch lace 1116 to compress medial panel 1110 and lateral panel
1112. In particular, the proximal portion of lace 1116 is drawn
into sole structure 1108 as the lacing engine is operated, which
can cause lace guides 1114 to be drawn toward sole structure 1108.
As lace guides 1114 on medial panel 1110 and lateral panel 1112 are
drawn closer to sole structure 1108, elastic strip 1102 can stretch
around a foot positioned within footwear upper 1100. Elastic strip
1102 can be made of any type of resilient material besides elastic,
such as rubber or spandex and the like. Elastic strip 1102 can be
configured to be at rest in an un-stretched state or in a
pre-tensioned state when a foot is placed in footwear upper 1100.
In other embodiments, elastic strip 1102 can be replaced with an
elastic mesh material.
FIG. 12 is a diagram illustrating a rear view of footwear upper
1100 of FIG. 11 showing heel strap assembly 1120 connecting lace
1116 on medial and lateral sides of upper 1110. Heel strap assembly
1120 can include pre-tensioning strap 1122, heel strap 1124 and
anchor point 1126. Pre-tensioning strap 1122 can extend from lace
1116 on the lateral side of footwear upper 1100 shown in FIG. 11,
extend past heel portion 1128 of footwear upper 1100, and extend to
the medial side of footwear upper 1100 (not visible in FIG. 12) to
connect to the opposite end of lace 1116. Pre-tensioning strap 1122
can be connected to lace 1116 in any suitable manner at juncture
1130, such as by using a lace guide 1114. In an example, lace 1116
is permitted to slide within juncture 1130 with pre-tensioning
strap 1122. In an example pre-tensioning strap 1122 can be
connected to guide tab 1115 of a lace guide 1114 and lace 1116 can
be connected to lace channel body 1117 of the lace guide 1114.
Pre-tensioning strap 1122 can comprise a resilient, elongate member
that can be stretched and that can regain its original length after
stretching. As will be explained in greater detail below with
reference to FIGS. 15A and 15B, pre-tensioning strap 1122 can be
configured to pull lace 1116 from the lacing engine when the lacing
engine spool is un-wound to release lace 1116.
Heel strap 1124 can extend from juncture 1130 of pre-tensioning
strap 1122 with lace 1116 to anchor point 1126. In the state shown
in FIG. 12, heel strap 1124 is folded between anchor point 1126 and
juncture 1130. As will be explained in greater detail below with
reference to FIGS. 15A and 15B, heel strap 1124 will unfold as
juncture 1130 is drawn toward the toe portion of footwear upper
1100, eventually causing anchor point 1126 to pull heel portion
1128 toward the toe portion to help retain footwear upper 1100 on
the heel of a foot inserted into upper 1100. Anchor point 1116 can
comprise any suitable means or device that can provide a stationary
point on footwear upper 1100. In the embodiment shown, anchor point
1126 can comprise a threaded fastener extending through footwear
upper 1100.
FIG. 13 is a diagram illustrating a lateral view of footwear upper
1100 of FIG. 11 partially cut-away to show lace guide 1114
connected to footwear upper 1100 alongside elastic strip 1102. FIG.
14 is a diagram illustrating footwear upper 1100 of FIG. 13 flexed
to show lace guide 1114 connected to footwear upper 1100 separately
from elastic strip 1102. FIGS. 13 and 14 are discussed
concurrently.
Outer layer 1118 is partially cut-away to show lateral panel 1112
independently connected to elastic strip 1102 and lace guide 1114.
Guide tab 1115 of lace guide 1114 can be connected to lateral panel
1112 by any suitable means. In the illustrated embodiment, guide
tab 1115 is connected to lateral panel 1112 via stitching 1132.
Guide tab 1115 is spaced from an upper edge of lateral panel 1112
over which elastic strip 1102 is positioned to form a gap between
guide tab 1115 and elastic strip 1102.
Elastic strip 1102 can comprise a single strip or, as show in FIGS.
13 and 14, multiple strips aligned end-to-end. Elastic strip 1102
can be connected to lateral panel 1112 via any suitable means, such
as adhesive or stitching. In the illustrated embodiment, elastic
strip 1102 is connected to lateral panel 1112 via stitching 1134.
Decoupling of lace guide 1114 from elastic strip 1102 can permit
elastic strip 1102 to stretch evenly along the length of lateral
panel 1112 and can allow elastic strip 1102 and can provide more
uniform action to operation of lace guide 1114 on lace 1116.
FIG. 15A is a diagram illustrating footwear upper 1100 of FIG. 12
showing a loosened lace 1116 being pulled out of a motorized lacing
engine by pre-tensioning strap 1122. As shown, the distance D1
between lace guide 1114A and lace guide 1114B can be at a first
open length. Likewise, the distance D2 between lace guide 1114A and
anchor point 1126 can be at a first collapsed length. Distance D1
is large, compared to distance D3 of FIG. 15B, to permit a foot to
enter footwear upper 1100 as lace 1116 is loosened. Tensioning
strap 1122 is activated to pull lace 1116 toward heel portion 1128
at juncture 1130 to thereby pull proximal end portion 1131 of lace
1116 out of the lacing engine. Heel strap 1124 is buckled or folded
between juncture 1130 and anchor point 1126 as the excess slack
from proximal end portion 1131 permits tensioning strap to act to
pull juncture 1130 towards anchor point 1126.
FIG. 15B is a diagram illustrating footwear upper 1100 of FIG. 15A
showing lace 1116 tightened into the motorized lacing engine and a
heel strap tightened around a heel of footwear upper 1100. As
shown, the distance D3 between lace guide 1114A and lace guide
1114B can be at a second collapsed length. Likewise, the distance
D4 between lace guide 1114A and anchor point 1126 can be at a
second open length. Distance D3 is small compared to distance D1 as
the lacing engine has been activated to draw proximal end portion
1131 of lace 1116 into the lacing engine. This additionally causes
the previously retracted tensioning strap 1122 to be stretched out
such that D4 is larger than D2, and causes heel strap 1124 to be
flattened and then stretched. Stretching of heel strap 11124 causes
heel portion 1128 of footwear upper 1100 to be drawn into the heel
of a foot positioned in footwear upper 1100 as lace 1116 cinches
down on footwear upper 1100 and the foot therein.
FIG. 16 is a diagram illustrating another embodiment of footwear
upper 1200 showing medial and lateral lacing cable tensioning
straps 1202 and 1204, respectively. Footwear upper 1200 can be
connected to sole structure 1206 in which a motorized lacing engine
can be disposed. Footwear upper 1200 can include medial panel 1208,
lateral panel 1210 and toe panel 1212, which are configured to at
least partially surround the foot. Medial panel 1208 and lateral
panel 1210 can include additional layers, such as lining or padding
layers (not shown). Cable tensioning straps 1202 and 1204 can be
connected to medial panel 1208 and lateral panel 1210 respectively
at bottom edges, and can be connected to lace 1214 at distal end
portions 1216A and 1216B, respectively. Footwear upper 1110 can
also include lace guides 1218 and elastic panel 1220.
Elastic panel 1220 can function similarly to elastic strip 1102 of
FIGS. 11-15B to provide footwear upper 1200 with a degree of
stretchability. Lace guides 1218 can function similarly as other
lace guides described herein and further description is not
provided here for brevity. Lace 1214 can have distal ends that are
connected to tensioning straps 1202 and 1204, while a middle
portion of lace 1214 can be located in a lacing mechanism disposed
in sole structure 1206. Thus, as the lacing mechanism winds lace
1214, lace 1214 is pulled through lace guides 1218 to cinch lace
1214 down against footwear upper 1200. Tensioning straps 1202 and
1204 provide anchors for end portions 1216A and 1216B of lace 1214
to facilitate the cinching action.
Tensioning straps 1202 and 1204 allow lace 1214 to be anchored to
sole structure 1206 while also at least partially wrapping around
panels 1208 and 1210 of footwear upper 1200. As can be seen, lace
1214 crosses over footwear upper 1200 once at medial panel 1208 and
once at lateral panel 1210. This permits some of the force used in
tensioning lace 1214 to also directly be used to apply inward
pressure on footwear upper 1200 proximate toe panel 1212.
Tensioning straps 1202 and 1204 provide a greater surface area over
which the tension in lace 1214 is distributed to panels 1208 and
1210. That is, the surface area of straps 1202 and 1204 that
contacts panels 1208 and 1210 is greater than the surface area of
lace 1214 that contacts panels 1208 and 1210 at the same location
if lace 1214 were anchored to footwear upper 1200 at sole structure
1206. In an embodiment, straps 1202 and 1204 are trapezoidal
shaped. In other embodiments, straps 1202 and 1204 can be
triangular or rectangular shaped. For example, strap 1202 can have
bottom edge region 1222 that is wider than top edge region 1224.
Bottom edge region 1222 can be attached to a bottom portion of
medial panel 1208, such as by adhesive or stitching or by
incorporation into sole structure 1206. Top edge region 1224 can be
attached to lace 1214 by any suitable methods, such as by being
attached to a length of strap 1202 by stitching 1226. Straps 1202
and 1204 can be attached to footwear upper 1200 only at sole
structure 1206 so that they form flaps. In other embodiments,
straps 1202 and 1204 can be attached to footwear upper 1200 along
their entire length or along only a portion of their length. Straps
1202 and 1204 can be made of a rigid or inelastic material or a
stretchable (resilient) or elastic material. The trapezoidal or
triangular shaped of straps 1202 and 1204 can distribute the stress
and force more evenly in the toe box of footwear upper 11200 and
make for a fit that is comfortable and secure. Likewise, straps
1202 and 1204 can include other geometries that have various
benefits such as distributing the stress and force evenly along
footwear upper 1200.
FIG. 17 is a graph illustrating various force versus lace
displacement curves 1300A, 1300B, 1300C, 1300D, 1300E and 1300F for
shoe uppers including various elastic or tensioning members
described herein, according to some example embodiments. The bottom
X axis shows displacement in millimeters and the side Y axis shows
Load in Newtons. Curves 1300A-1300F are each associated with a
different loading on a lace. As shown, by adjusting the parameters
of the various components described herein (lace cable 480, elastic
members 440, an elastic heel member 350, an elastic central
reinforcement 325, etc.) differing levels of comfort slope can be
provided before the elastic zones lock out and the performance
zones are initiated. Thus, the comfort slope and the performance
slope of each curve can be engineered to provide different effects
for different types of shoes or articles of footwear, or for
different types of wearers.
FIG. 18 is a diagram illustrating footwear upper 1200 of FIG. 16
laid out flat to show a lacing architecture including tensioning
straps 1202 and 1204 connected to lace 1214 in a cross-over
configuration.
Footwear upper 1200 can include medial panel 1208, lateral panel
1210, heel panels 1211A and 1211B, and toe panel 1212, which are
configured to at least partially surround a foot when heel panel
1211B is attached to lateral panel 1210 and footwear upper 1200 is
attached to a sole structure. Medial panel 1208 and lateral panel
1210 can include additional layers, such as a lining (not shown),
outer layer 1230 (which can include sole portions 1230A and 1230B,
and throat portions 1230C and 1230D), and overlay 1232 (which can
include sole portions 1232A and 1232B, and throat portions 1232C
and 1232D).
Outer layer 1230 can comprise a layer of material to strengthen
medial panel 1208 and lateral panel 1210. In an example, outer
layer 1230 can comprise a synthetic material such as nylon. Overlay
1232 can comprise a layer that supports lace guides 1218. Overlay
1232 can comprise a semi-rigid, yet pliable material that can
distribute loading of lace guides 1218 to footwear upper 1200. In
an example, overlay 1232 can comprise a synthetic material such as
Poron.RTM. microcellular urethane.
Tensioning straps 1202 and 1204 can be connected to medial panel
1208 and lateral panel 1210, respectively, at bottom edges 1222A
and 1222B, and can be connected to distal end portions 1216A and
1216B of lace 1214, respectively, at outer edges 1224A and 1224B.
Footwear upper 1110 can also include lace guides 1218 and elastic
panel 1220.
Proximal ends 1234A and 1234B of lace 1214 can be connected to a
lacing engine (not shown). Proximal ends 1234A and 1234B can be
connected to each other so as to form lace 1214. That is, lace 1214
can comprise a single-piece structure. Lace 1214 is threaded
through lace guides 1218 so that distal end portions 1216A and
1216B extend to tensioning straps 1202 and 1204. Distal end portion
1216A is connected to tensioning strap 1202 at stitching 1226.
Likewise, distal end portion 1216B can be connected to tensioning
strap 1204. As shown, distal end portions 1216A and 1216B crossover
a throat region of footwear upper 1200 formed between throat
portions 1230C and 1230D of outer layer 1230, for example. In such
a configuration, lacing guides 1218 on throat portions 1230C and
1230D can be omitted near toe panel 1212 to prevent interference
with lace 1214.
Tensioning straps 1202 and 1204 can be configured to float on top
of footwear upper 1200 to permit the various layers of footwear
upper 1200 (e.g., outer layer 1230 and overlay 1232) to contract
independently of the tension in lace 1214 when lace 1214 is drawn
tight. For example, as throat portions 1230C and 1230D are drawn
closer to sole portions 1230A and 1230B, respectively, when
proximal ends 1234A and 1234B are drawn tight by a lacing engine,
throat portions 1230C and 1230D can slide underneath tensioning
straps 1202 and 1204. Thus, in an embodiment, only a portion of
each of tensioning straps 1202 and 1204 can be attached to footwear
upper 1200.
Tensioning straps 1202 and 1204 can have a variety of shapes to
distribute the force of lace 1214 over medial panel 1208 and
lateral panel 1210. Straps 1202 and 1204 can be triangular,
quadrilateral, trapezoidal, rectilinear or any other shape. In an
example, straps 1202 and 1204 are wider at the bottom near the sole
structure and narrower at the top near lace 1214 in order to
distribute forces from lace 1214 along a wide swath of footwear
upper 1200 and the sole structure. Straps 1202 and 1204 can have
the same shape or, as shown in FIG. 20, can have different
shapes.
FIG. 19 is a diagram illustrating tensioning strap 1202 of FIG. 18
indicating lockout region 1240 and stretch region 1242. Distal end
portion 1216A of lace 1214 can be connected to lockout region 1240,
such as by stitching 1226, along length L.
Bottom edge region 1222 of strap 1202 can be wider than top edge
region 1224. Bottom edge region 1222 can be connected to footwear
upper 1200 or a sole structure. In certain embodiments, only a
portion of stretch region 1242, such as bottom edge region 1222, is
connected to footwear upper 1200 or a sole structure in order to
permit stretch region 1242 to stretch. In an embodiment, stretch
region 1242 is comprised of elastic, a synthetic material, a
polymer, a proprietary material having one or more of those
properties, such as Lunar Fly Strap material, or the like. In other
examples, a majority or an entirety of stretch region 1242 is
connected to footwear upper 1200.
Lockout region 1240 can extend from stretch region 1242 to top edge
region 1224. Lockout region 1240 can extend laterally across the
entirety of the top-most portion of stretch region 1242. Lockout
region 1240 can comprise a portion of tensioning strap 1202 that is
less elastic or stretchable than stretch region 1242. In an
example, lockout region 1240 can comprise a separate piece of
material attached to the material of stretch region 1242. In
another embodiment, lockout region 1240 is an extension of the
material of stretch region 1242 that is treated so as to stiffen
the material in lockout region 1240. For example, stitching 1226
along length L of lace 1214 can provide the stiffening treatment.
In an example, length L can be approximately 15 millimeters.
Additionally or alternatively, lockout region 1240 can be treated
with hot melt material to secure distal end portion 1216A and
stiffen lockout region 1240. In other embodiments, lockout region
1240 can be treated with a stretch-inhibiting coating, such as
Terranina, to increase the lockout capabilities of tensioning strap
1202. Lockout capabilities can indicate an unwillingness to stretch
in order to allow lace 1214 to be tightened. That is, a completely
locked out lace will increase tightening on the foot proportionally
to the amount the lace is cinched. In other words, the lace can no
longer stretch. The lockout capabilities of lockout region 1240 and
the stretching capabilities of stretch region 1242 can be varied in
different combinations for different embodiments of tensioning
strap 1202.
FIG. 20 is a diagram illustrating another embodiment of footwear
upper 1200 including a lacing architecture including tensioning
straps 1250 and 1252 connected to lace 1214 in a non-cross-over
configuration. Footwear upper 1200 of FIG. 20 includes the same
components as footwear upper 1200 of FIG. 18, except tensioning
straps 1202 and 1204 are replaced with tensioning straps 1250 and
1252, and lacing guides 1218A and 1218B are added. As can be seen
in FIG. 20 distal end portions 1216A and 1216B of lace 1214 can be
configured to stay on the same side of footwear upper 1200 where
they are connected to the lacing engine and their respective
tensioning strap. That is, distal end portion 1216B can be
connected to medial tensioning strap 1250 and can extend through
lacing guide 1218A and other lacing guides 1218 across medial panel
1208 to connect to the lacing engine, while distal end portion
1216A can be connected to lateral tensioning strap 1252 and can
extend through lacing guide 1218B and other lacing guides 1218
across lateral panel 1210 to connect to the lacing engine. Lacing
guides 1218A and 1218B can be added to facilitate cinching of upper
1200 and stretching of elastic panel 1220 along a length of a
throat region of upper 1200. As shown, the relative sizes of
tensioning straps 1250 and 1252 can be varied to provide different
performance characteristics on the medial and lateral sides of
upper 1200. For example, tensioning straps 1250 and 1252 can be
shorter than tensioning straps 1202 and 1204 in the non-crossover
embodiment of FIG. 20 to, for example, bring distal end portions
1216A and 1216B closer to the sole structure. Also, medial
tensioning strap 1250 can be shorter than lateral tensioning strap
1252, or vice versa, to change the force applied to the ball
region, metatarsal region and the phalanges region of the foot.
FIG. 21 is a top-view diagram illustrating a flattened footwear
upper 1400 with a lacing architecture for use with a lacing engine,
according to some example embodiments. FIG. 22 is a picture of an
example footwear assembly utilizing the two-zone lacing
architecture discussed in reference to FIG. 21. In this example,
the footwear upper 1400 has a medial side 1403 and a lateral side
1404, as well as a distal (toe) end and a proximal (heel) end. The
distal end includes a toe box section 1407 and the proximal end
includes a heel portion 1406. The footwear upper 1400 can also
include a floating textile layer (optional, not illustrated), an
outer layer 1402, and a floating tongue 1405. The floating tongue
1405 extends out of the foot opening 1409 of the outer layer 1402
proximate a throat portion 1411 (also referred to as a throat
section) formed from a U-shaped cut-out in at least the outer layer
1402. In some examples, the throat portion 1411 varies in
configuration, including various cut-out shapes or alternative
material sections. All throat portions allow for portions of the
lateral and medial sides of the footwear assembly to move in
reference to each other. In other examples, the throat portion 1411
can be integrated into a covered layer of the outer layer 1402, so
the throat portion 1411 and the lacing architecture is concealed
from external view. In some examples, the throat portion 1411 is
also cut-out of the floating textile layer. The footwear upper 1400
can include some or all of the structures discussed in reference to
footwear upper 300, but is illustrated in a more simplistic fashion
to emphasize the two-zone lacing architecture.
In this example, the lacing architecture is split into two
different zones. The first zone interacts with the toe or forefoot
area of the footwear upper 1400. The second zone interacts with the
mid-foot area of the footwear upper 1400. The first lacing zone
lace cable is illustrated as a solid dark grey line, and the second
lacing zone lace cable illustrated as a dotted black line. These
differences are merely for illustrative purposes to assist in
distinguishing the different lace cable paths, the lace cable in
these details is a single cable running from termination 1420 to
termination 1421 (terminations also referred to as anchor locations
or anchor points). Alternatively, even in designs were the first
lacing zone and the second lacing zone utilize different lace
cables, the material used will typically be common between the
different zones. The first lacing zone can include lace guides
guiding the lace cable 1410 from a first lace termination 1420. In
this example, the first lace termination 1420 is located on a
distal-lateral portion of eyestay 1408. The lace cable 1410 is
routed from the first lace termination 1420 across a distal end of
throat portion 1411 and through a first medial lace guide 1440.
From the first medial lace guide 1440 the lace cable 1410 is routed
back over the throat portion 1411 and through a first lateral lace
guide 1430. From the first lateral lace guide 1430, the lace cable
1410 is routed pass a second lateral lace guide 1431 and though a
third lateral lace guide 1432. The lace guides are labeled first,
second, third, etc. to signify an order running proximally from the
distal end of the throat portion 411 towards the foot opening 1409.
Optionally, the lace cable 1410 can route through a material guide
1422 en route from the first lateral lace guide 1430 to the third
lateral lace guide 1432. From the third lateral lace guide 1432,
the lace cable 1410 is routed through a lateral facing tongue lace
guide 1417 and down to a lateral heel lace guide 1451 through an
optional material guide 1422. The lateral heel lace guide 1451
routes the lace cable 1410 into a mid-sole plate via lateral lace
exit 1419.
The second lacing zone includes a set of lace guides routing the
lace cable 1410 from the second termination 1421 to the medial lace
exit 1418. In this example, the lace cable 1410 is routed from the
second termination 1421 on the lateral side of eyestay 1408 over
the throat portion 1411 to the second medial lace guide 1441. From
the second medial lace guide 1441 the lace cable 1410 is routed
back over the throat portion 1411 to the second lateral lace guide
1431. The lace cable 1410 then routes through the second lateral
lace guide 1431 back over the throat portion 411 for a third time
and through the third medial lace guide 1442. The third medial lace
guide 1442 routes the lace cable 1410 on to the medial facing
tongue lace guide 1416, which routes the lace cable on towards the
medial heel lace guide 1450. En route to the medial heel lace guide
1450 the lace cable can optionally be routed through a material
lace guide 1424. From the medial heel lace guide 1450 the lace
cable 1410 is routed into the mid-sole plate via the medial lace
exit 1418.
The two-zone lacing architecture enables an uneven distribution of
the lace cable tension between the distal end of the throat portion
1411 and the proximal end. The first lacing zone applies the same
lace cable tension across fewer lace guides, resulting the tension
being distributed across a smaller area. The second lacing zone
distributes the lace cable tension over a larger area with more
lace guides The user experiences a tighter, higher performance fit
in the toe (forefoot) area of the footwear with the two-zone lacing
architecture. Other multi-zone lacing architectures can be utilized
to vary the distribution of lace cable tension as desired for a
particular footwear application.
In this example, the lacing architecture includes a tongue lace
guide assembly 1415 (or simply a tongue lace guide 1415). The
tongue lace guide 1415 can include a medial facing lace guide 1416
and a lateral facing lace guide 1417. The medial facing lace guide
1416 and the lateral facing lace guide 1417 can be molded or formed
from a single piece of material or be separate structures coupled
together in some manner. In certain examples, the medial facing
lace guide and the lateral facing lace guide can be coupled
together with an elastic member, such as elastic member 440, that
allows for some separation between the lace guides upon application
of tension on the lace cable 1418. In certain examples, the medial
facing lace guide 1416 and the lateral facing lace guide 1417 can
be adhered to a tongue lace guide reinforcement. In yet other
examples, the medial facing lace guide and the lateral facing lace
guide are disposed on, wrapped in, or otherwise connected via a
webbing material. The tongue lace guide reinforcement can be a
no-stretch or limited-stretch material, a rigid material, or an
elastic material. The tongue lace guide reinforcement can be
adhered, stitched, or similarly affixed to the floating tongue
1405. In some examples, the tongue lace guide reinforcement can be
padded or similarly constructed to distribute forces applied to the
tongue lace guide across a wider area to avoid hot-spots for a
user. In other examples, medial facing lace guide 1416 and lateral
facing lace guide 1417 can be connected by an elastic element or
webbing and can be floating relative to floating tongue 1405.
Embodiments of the present disclosure can be directed at adjusting
the effective spring stiffness of a shoe when it is tightened on a
foot. Deliberate elastic regions in the lace system of the footwear
upper can allow for different tightening rates. For example, very
stiff lacing systems can become very tight very quickly,
potentially causing discomfort to the wearer. Elastic regions
strategically added to the lacing system and/or the footwear upper
can manipulate the lock out stiffness, travel, modulus or other
parameters of the shoe to tune the fit of the footwear upper to the
foot. As such, elastic zones can be added to the top and rear (or
heel) areas of the foot to permit the footwear upper to pull down
on the foot in a desirable manner. For example, the elastic zones
can facilitate placement or pre-tensioning of an untightened
material of the footwear upper, which can be thought of as a
parachute of material that is cinched down on the foot by the
lacing architecture. A user can adjust the lacing mechanism to
adjust the article of footwear to have different comfort or
performance characteristics, depending on desire, preference or use
of the article of footwear.
EXAMPLES
Example 1 can include or use subject matter such as a footwear
assembly comprising: a footwear upper including a toe box portion,
a medial side, a lateral side, and a heel portion, the medial side
and the lateral side each extending proximally from the toe box
portion to the heel portion; a lace cable with a first end anchored
along a distal outside portion of the medial side and a second end
anchored along a distal outside portion of the lateral side; a
plurality of lace guides distributed along the medial side and the
lateral side, each lace guide of the plurality of lace guides
adapted to receive a length of the lace cable, wherein the lace
cable extends through each of the plurality of lace guides to form
a pattern along each of the medial side and lateral side of the
footwear upper; a medial proximal lace guide routing the lace cable
from the pattern formed by a medial portion of the plurality of
lace guides into a position allowing the lace cable to engage a
lacing engine disposed within a mid-sole portion; a lateral
proximal lace guide to route the lace cable out of the position
allowing the lace cable to engage the lacing engine into the
pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between first and
second lace guides of the plurality of lace guides.
Example 2 can include, or can optionally be combined with the
subject matter of Example 1 to optionally include, a first elastic
member that can connect the first and second lace guides across a
centerline portion of the footwear upper.
Example 3 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 1 or 2 to
optionally include, a first elastic member that can connect the
first and second lace guides across the heel portion of the
footwear upper.
Example 4 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 1 through 3 to
optionally include, a second elastic member that can extend between
third and fourth lace guides of the plurality of lace guides.
Example 5 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 1 through 4 to
optionally include, a first elastic member that can be
interchangeable with different elastic members providing varying
modulus of elasticity to change fit characteristics of the footwear
upper.
Example 6 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 1 through 5 to
optionally include, a first elastic member that can function to
smooth out a torque versus lace displacement curve during
tightening of the lace cable.
Example 7 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a housing structure that can
comprise: a footwear assembly comprising: a footwear upper
including a toe box portion, a medial side, a lateral side, and a
heel portion, the medial side and the lateral side each extending
proximally from the toe box portion to the heel portion; a lace
cable with a first end anchored along a distal outside portion of
the medial side and a second end anchored along a distal outside
portion of the lateral side; a plurality of lace guides distributed
along the medial side and the lateral side, each lace guide of the
plurality of lace guides adapted to receive a length of the lace
cable, wherein the lace cable extends through each of the plurality
of lace guides to form a pattern along each of the medial side and
lateral side of the footwear upper; a medial proximal lace guide
routing the lace cable from the pattern formed by a medial portion
of the plurality of lace guides into a position allowing the lace
cable to engage a lacing engine disposed within a mid-sole portion;
a lateral proximal lace guide to route the lace cable out of the
position allowing the lace cable to engage the lacing engine into
the pattern formed by a lateral portion of the plurality of lace
guides; and a first elastic member extending between first and
second portions of the footwear upper.
Example 8 can include, or can optionally be combined with the
subject matter of Example 7 to optionally include, a first elastic
member that can comprise an elastic centerline portion extending
from at least the toe box portion proximally to a foot opening, and
the first and second portions of the footwear upper can comprise
the medial and lateral sides, respectively.
Example 9 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 7 or 8 to
optionally include, a first elastic member that can comprise an
elastic heel portion extending proximate to a foot opening, and the
first and second portions of the footwear upper can comprise medial
and lateral sides of the heel portion, respectively.
Example 10 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 1 through 9 to
optionally include, a first elastic member that can function to
smooth out a torque versus lace displacement curve during
tightening of the lace cable.
Example 11 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 7 through 19
to optionally include, a first elastic member that can be opened or
expanded to permit access to an interior space within the footwear
upper.
Example 12 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a footwear upper including a toe box portion, a medial side, a
lateral side, and a heel portion, the medial side and the lateral
side each extending proximally from the toe box portion to the heel
portion; a lace cable with a first end anchored along a distal
outside portion of the medial side and a second end anchored along
a distal outside portion of the lateral side; a plurality of lace
guides distributed along the medial side and the lateral side, each
lace guide of the plurality of lace guides adapted to receive a
length of the lace cable, wherein the lace cable extends through
each of the plurality of lace guides to form a pattern along each
of the medial side and lateral side of the footwear upper; a medial
proximal lace guide routing the lace cable from the pattern formed
by a medial portion of the plurality of lace guides into a position
allowing the lace cable to engage a lacing engine disposed within a
mid-sole portion; a lateral proximal lace guide to route the lace
cable out of the position allowing the lace cable to engage the
lacing engine into the pattern formed by a lateral portion of the
plurality of lace guides; and a first elastic member extending
between a first portion of the footwear upper and a first lace
guide of the plurality of lace guides.
Example 13 can include, or can optionally be combined with the
subject matter of Example 12 to optionally include, a first portion
of the footwear upper that can comprise the heel portion and the
first lace guide is located proximate the heel portion.
Example 14 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 12 or 13 to
optionally include, a first portion of the footwear upper that can
comprise either one of the medial side or the lateral side of the
footwear upper and the first lace guide is located proximate a
throat of the upper.
Example 15 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 12 through 14
to optionally include, a second elastic member that can extend
between a second portion of the footwear upper and a second lace
guide of the plurality of lace guides.
Example 16 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 12 through 15
to optionally include, a first elastic member that can be
interchangeable with different elastic members providing varying
modulus of elasticity to change fit characteristics of the footwear
upper.
Example 17 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 12 through 16
to optionally include, a first elastic member that can function to
smooth out a torque versus lace displacement curve during
tightening of the lace cable.
Example 18 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a sole structure; a footwear upper defining a toe box portion, a
medial side, a lateral side, and a heel portion, the footwear upper
connected to the sole structure to form an interior space for
receiving a foot, the footwear upper forming a collar to permit
access to the interior space; a lacing engine disposed in the sole
structure; a lacing system comprising: a lace cable having medial
and lateral ends anchored to the footwear upper and a middle
portion passing through the lacing engine; and a plurality of lace
guides for routing the lace cable along the footwear upper between
the medial and lateral ends and the lacing engine; and a heel
channel connected to the heel portion and configured to facilitate
access to the interior space.
Example 19 can include, or can optionally be combined with the
subject matter of Example 18 to optionally include, a heel channel
that can comprise an elastic member coupling medial and lateral
portions of the heel portion.
Example 20 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 18 or 19 to
optionally include, an elastic member that can be coupled to the
footwear assembly and functions to smooth out a torque versus lace
displacement curve during tightening of the lace cable.
Example 21 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 18 through 20
to optionally include, a heel channel that can comprise a
zipper.
Example 22 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 18 through 21
to optionally include, a heel channel that can comprise strips of
hook and loop fastener material located on medial and lateral
portions of the heel portion, respectively.
Example 23 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a sole structure; a footwear upper defining a toe box portion, a
medial side, a lateral side, and a heel portion, the footwear upper
connected to the sole structure to form an interior space for
receiving a foot, the footwear upper forming a collar to permit
access to the interior space; a lacing engine disposed in the sole
structure; a lacing system comprising: a lace cable having medial
and lateral ends anchored to the footwear upper and a middle
portion passing through the lacing engine, and a plurality of lace
guides for routing the lace cable along the footwear upper between
the medial and lateral ends and the lacing engine; and an elastic
member coupled to the footwear assembly that functions to smooth
out a torque versus lace displacement curve during tightening of
the lace cable.
Example 24 can include, or can optionally be combined with the
subject matter of Example 23 to optionally include, an elastic
member that can be configured to stretch after the lacing engine
has tightened the lace cable.
Example 25 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 or 24 to
optionally include, an elastic member that can have a modulus of
elasticity lower than that of the footwear upper.
Example 26 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 25
to optionally include, an elastic member that can be configured to
widen the collar.
Example 27 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 26
to optionally include, an elastic member that can connect first and
second lace guides of the plurality of lace guides.
Example 28 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 27
to optionally include, first and second lace guides that can be
located on medial and lateral portions of the heel portion,
respectively.
Example 29 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 28
to optionally include, first and second lace guides that can be
located on the medial side and the lateral side of the footwear
upper, respectively.
Example 30 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 29
to optionally include, first and second lace guides that can be
floating relative to the footwear upper.
Example 31 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 30
to optionally include, an elastic member that can connect a first
lace guide of the plurality of lace guides to a first portion of
the shoe upper.
Example 32 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 31
to optionally include, a first lace guide that can be located on
either the medial or lateral side of the footwear upper and a first
portion of the shoe upper that can be located on the heel
portion.
Example 33 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 32
to optionally include, a first lace guide and a first portion of
the shoe upper that can be located on either the medial or lateral
side of the footwear upper, and the first portion of the shoe upper
can be located at the throat.
Example 34 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 33
to optionally include, first and second lace guides that can be
floating relative to the footwear upper.
Example 35 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 35
to optionally include, an elastic member that can connect first and
second portions of the shoe upper.
Example 36 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 35
to optionally include, a first portion of the shoe upper that can
comprise a lateral side and a second portion of the shoe upper that
can comprise a medial side, wherein the elastic member spans the
heel portion.
Example 37 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 36
to optionally include, a first portion of the shoe upper that can
comprise the lateral side and a second portion of the shoe upper
that can comprise the medial side, wherein the elastic member can
span a throat portion of the footwear upper.
Example 38 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 23 through 37
to optionally include, a plurality of elastic members that can be
incorporated into the lacing system.
Example 39 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a footwear upper including a toe box portion, a medial side, a
lateral side, and a heel portion, the medial side and the lateral
side each extending proximally from the toe box portion to the heel
portion; a medial tensioning member secured to the medial side of
the upper proximate the toe box; a lateral tensioning member
secured to the lateral side of the upper proximate the toe box; a
lace cable with a first end attached to the medial tensioning
member and a second end attached to the lateral tensioning member;
and a plurality of lace guides distributed along the medial side
and the lateral side, each lace guide of the plurality of lace
guides adapted to receive a length of the lace cable, wherein the
lace cable extends through each of the plurality of lace guides to
form a pattern along each of the medial side and lateral side of
the footwear upper.
Example 40 can include, or can optionally be combined with the
subject matter of Example 39 to optionally include, a footwear
upper that can further comprise an elastic member connecting the
medial and lateral sides of the footwear upper along a throat
region of the footwear upper.
Example 41 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 or 40 to
optionally include, medial and lateral tensioning members that can
each be at least partially floating with respect to the medial and
lateral sides of the footwear upper, respectively.
Example 42 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 41
to optionally include, medial and lateral tensioning members that
can each comprise: a lockout zone; and a stretch zone.
Example 43 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 42
to optionally include, a lockout zone that can be connected to the
lace cable and a stretch zone that can be connected to the footwear
upper.
Example 44 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 43
to optionally include, a bottom edge of the stretch zone that can
be connected to the footwear upper.
Example 45 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 44
to optionally include, a lockout zone that can be completely
floating relative to the footwear upper.
Example 46 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 45
to optionally include, a lockout zone that can include a
stretch-inhibiting coating.
Example 47 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 46
to optionally include, a lockout zone and a stretch zone that can
be comprised of a contiguous sheet of material.
Example 48 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 47
to optionally include, first and second ends of the lace cable that
can be stitched to the medial and lateral tensioning members,
respectively, in the lockout zone.
Example 49 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 48
to optionally include, a lace cable that can further comprise: a
first proximal portion connected to the medial side of the footwear
upper and the first end of the lace cable; and a second proximal
portion connected to the lateral side of the footwear upper and the
second end of the lace cable; wherein the first end of the lace
cable can be connected to the medial tensioning member and the
second end of the lace cable is connected to the lateral tensioning
member.
Example 50 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 49
to optionally include, a first end and a second end of the lace
cable that can crossover a throat region of the footwear upper.
Example 51 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 50
to optionally include, a lace cable that can further comprise: a
first proximal portion connected to the medial side of the footwear
upper and the first end of the lace cable; and a second proximal
portion connected to the lateral side of the footwear upper and the
second end of the lace cable; wherein the first end of the lace
cable can be connected to the lateral tensioning member and the
second end of the lace cable can be connected to the medial
tensioning member.
Example 52 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 39 through 51
to optionally include, a medial proximal lace guide that can route
the lace cable from the pattern formed by a medial portion of the
plurality of lace guides into a position allowing the lace cable to
engage a lacing engine disposed within a mid-sole portion; and a
lateral proximal lace guide to route the lace cable out of the
position allowing the lace cable to engage the lacing engine into
the pattern formed by a lateral portion of the plurality of lace
guides.
Example 53 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a sole structure; a footwear upper defining a toe box portion, a
medial side, a lateral side, and a heel portion, the footwear upper
connected to the sole structure to form an interior space for
receiving a foot, the footwear upper forming a collar to permit
access to the interior space; a lacing engine disposed in the sole
structure; a medial floating overlay attached to the medial side of
the footwear upper proximate the toe box portion; a lateral
floating overlay attached to the lateral side of the footwear upper
proximate the toe box portion; and a lacing system comprising: a
lace cable having medial and lateral ends anchored to the medial
and lateral floating overlays and a middle portion passing through
the lacing engine; and a plurality of lace guides for routing the
lace cable along the footwear upper between the medial and lateral
ends and the lacing engine.
Example 54 can include, or can optionally be combined with the
subject matter of Examples 53 to optionally include, a medial end
of the lace cable that can be connected to the medial floating
overlay and a lateral end of the lace cable that can be connected
to the lateral floating overlay.
Example 55 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 and 54 to
optionally include, medial and lateral ends of the lace cable that
can crossover a throat region of the footwear upper between the
medial and lateral sides.
Example 56 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 55
to optionally include, a medial end of the lace cable that can be
connected to the lateral floating overlay and a lateral end of the
lace cable that can be connected to the medial floating
overlay.
Example 57 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 56
to optionally include, an elastic member that can connect the
medial and lateral sides of the footwear upper.
Example 58 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 57
to optionally include, medial and lateral tensioning members that
can each comprise: a lockout zone; and a stretch zone.
Example 59 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 58
to optionally include, a lockout zone that can be connected to the
lace cable and a stretch zone that can be connected to the footwear
upper.
Example 60 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 59
to optionally include, a bottom edge of a stretch zone that can be
connected to the footwear upper.
Example 61 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 60
to optionally include, a lockout zone that can be completely
floating relative to the footwear upper.
Example 62 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 61
to optionally include, a lockout zone that can include a
stretch-inhibiting coating.
Example 63 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 62
to optionally include, a lockout zone and a stretch zone that can
be comprised of a contiguous sheet of material.
Example 64 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 53 through 63
to optionally include, medial and lateral ends of the lace cable
that can be stitched to the medial and lateral tensioning members,
respectively, in a lockout zone.
Example 63 can include or use subject matter such as a footwear
lacing apparatus that can comprise: a footwear assembly comprising:
a footwear upper including a toe box portion, a medial side, a
lateral side, and a heel portion, the medial side and the lateral
side each extending proximally from the toe box portion to the heel
portion and forming a throat region of the footwear upper; a medial
tensioning member secured to the medial side of the upper proximate
the toe box; a lateral tensioning member secured to the lateral
side of the upper proximate the toe box; a lace cable with a first
end attached to the medial tensioning member and a second end
attached to the lateral tensioning member; and a plurality of lace
guides distributed along the medial side and the lateral side;
wherein the lace cable extends from the first end at the medial
tensioning member, across the throat region, and through one or
more lace guides along the lateral side; and wherein the lace cable
extends from the second end at the lateral tensioning member,
across the throat region, and through one or more lace guides along
the medial side.
Example 65 can include, or can optionally be combined with the
subject matter of Examples 64 to optionally include, a footwear
upper that can further comprise an elastic member connecting the
medial and lateral sides of the footwear upper along the throat
region of the footwear upper.
Example 66 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 64 and 65 to
optionally include, medial and lateral tensioning members that can
each be at least partially floating with respect to the medial and
lateral sides of the footwear upper, respectively.
Example 67 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 64 through 65
to optionally include, medial and lateral tensioning members that
can each comprise: a stiff lockout zone; and an elastic stretch
zone.
Example 68 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 64 through 67
to optionally include, a lockout zone that can be connected to the
lace cable and a stretch zone that can be connected to the footwear
upper.
Example 69 can include, or can optionally be combined with the
subject matter of one or any combination of Examples 64 through 67
to optionally include, a lockout zone and a stretch zone that can
be comprised of a contiguous sheet of material.
ADDITIONAL NOTES
Throughout this specification, plural instances may implement
components, operations, or structures described as a single
instance. Although individual operations of one or more methods are
illustrated and described as separate operations, one or more of
the individual operations may be performed concurrently, and
nothing requires that the operations be performed in the order
illustrated. Structures and functionality presented as separate
components in example configurations may be implemented as a
combined structure or component. Similarly, structures and
functionality presented as a single component may be implemented as
separate components. These and other variations, modifications,
additions, and improvements fall within the scope of the subject
matter herein.
Although an overview of the inventive subject matter has been
described with reference to specific example embodiments, various
modifications and changes may be made to these embodiments without
departing from the broader scope of embodiments of the present
disclosure. Such embodiments of the inventive subject matter may be
referred to herein, individually or collectively, by the term
"invention" merely for convenience and without intending to
voluntarily limit the scope of this application to any single
disclosure or inventive concept if more than one is, in fact,
disclosed.
The embodiments illustrated herein are described in sufficient
detail to enable those skilled in the art to practice the teachings
disclosed. Other embodiments may be used and derived therefrom,
such that structural and logical substitutions and changes may be
made without departing from the scope of this disclosure. The
disclosure, therefore, is not to be taken in a limiting sense, and
the scope of various embodiments includes the full range of
equivalents to which the disclosed subject matter is entitled.
As used herein, the term "or" may be construed in either an
inclusive or exclusive sense. Moreover, plural instances may be
provided for resources, operations, or structures described herein
as a single instance. Additionally, boundaries between various
resources, operations, modules, engines, and data stores are
somewhat arbitrary, and particular operations are illustrated in a
context of specific illustrative configurations. Other allocations
of functionality are envisioned and may fall within a scope of
various embodiments of the present disclosure. In general,
structures and functionality presented as separate resources in the
example configurations may be implemented as a combined structure
or resource. Similarly, structures and functionality presented as a
single resource may be implemented as separate resources. These and
other variations, modifications, additions, and improvements fall
within a scope of embodiments of the present disclosure as
represented by the appended claims. The specification and drawings
are, accordingly, to be regarded in an illustrative rather than a
restrictive sense.
Each of these non-limiting examples can stand on its own, or can be
combined in various permutations or combinations with one or more
of the other examples.
The above detailed description includes references to the
accompanying drawings, which form a part of the detailed
description. The drawings show, by way of illustration, specific
embodiments in which the invention can be practiced. These
embodiments are also referred to herein as "examples." Such
examples can include elements in addition to those shown or
described. However, the present inventors also contemplate examples
in which only those elements shown or described are provided.
Moreover, the present inventors also contemplate examples using any
combination or permutation of those elements shown or described (or
one or more aspects thereof), either with respect to a particular
example (or one or more aspects thereof), or with respect to other
examples (or one or more aspects thereof) shown or described
herein.
In the event of inconsistent usages between this document and any
documents so incorporated by reference, the usage in this document
controls.
In this document, the terms "a" or "an" are used, as is common in
patent documents, to include one or more than one, independent of
any other instances or usages of"at least one" or "one or more." In
this document, the term "or" is used to refer to a nonexclusive or,
such that "A or B" includes "A but not B," "B but not A," and "A
and B," unless otherwise indicated. In this document, the terms
"including" and "in which" are used as the plain-English
equivalents of the respective terms "comprising" and "wherein."
Also, in the following claims, the terms "including" and
"comprising" are open-ended, that is, a system, device, article,
composition, formulation, or process that includes elements in
addition to those listed after such a term in a claim are still
deemed to fall within the scope of that claim. Moreover, in the
following claims, the terms "first," "second," and "third," etc.
are used merely as labels, and are not intended to impose numerical
requirements on their objects.
Method (process) examples described herein, such as the footwear
assembly examples, can include machine or robotic implementations
at least in part.
The above description is intended to be illustrative, and not
restrictive. For example, the above-described examples (or one or
more aspects thereof) may be used in combination with each other.
Other embodiments can be used, such as by one of ordinary skill in
the art upon reviewing the above description. An Abstract, if
provided, is included to comply with 37 C.F.R. .sctn. 1.72(b), to
allow the reader to quickly ascertain the nature of the technical
disclosure. It is submitted with the understanding that it will not
be used to interpret or limit the scope or meaning of the claims.
Also, in the above Description, various features may be grouped
together to streamline the disclosure. This should not be
interpreted as intending that an unclaimed disclosed feature is
essential to any claim. Rather, inventive subject matter may lie in
less than all features of a particular disclosed embodiment. Thus,
the following claims are hereby incorporated into the Detailed
Description as examples or embodiments, with each claim standing on
its own as a separate embodiment, and it is contemplated that such
embodiments can be combined with each other in various combinations
or permutations. The scope of the invention should be determined
with reference to the appended claims, along with the full scope of
equivalents to which such claims are entitled.
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